From the record
88 National Register listings published here, 1 of them a National Historic Landmark.
Sources: the National Register database, National Park Service
142 topographic sheets cover 58 settlements here, and 88 properties are on the National Register of Historic Places.
88 National Register listings published here, 1 of them a National Historic Landmark.
Sources: the National Register database, National Park Service
Every property in this county listed on the National Register of Historic Places, with the year it was listed and the federal nomination document.
Drawn when these were printed as single large sheets: the town seen from the air, and the county divided into its farms with every owner named. Each opens the original at the Library of Congress.



Selected from the Digital Public Library of America's 13 image records catalogued for this county. Every one shown here carries a public-domain status or a licence that permits reuse on a site that carries advertising; non-commercial, share-alike and restricted images are excluded. The selection is spread across the county's towns (at most eight per town), so no single institution's bulk upload crowds out the rest. Each opens the holding library's record, and the complete set at the Digital Public Library of America is one click away.


Flown by the U.S. Geological Survey between 1937 and 1989, the Aerial Photo Single Frames collection is the definitive mid-century view of the land: fields, roads and rivers as the camera saw them. The Survey holds 5,516 frames inside the rectangle that bounds this county; the 48 frames below were taken over the county itself, chosen across the decades of flights (at most four a year from that rectangle), so one flight cannot crowd out the rest. The full set is free to browse and download at EarthExplorer under the dataset Aerial Photo Single Frames.
















































The thermometers that kept this county's weather, and the gages that measured the flow of its streams, as the federal records hold them. The extremes below are measured values from those records, not estimates.
Who lived here in 1950, one enumeration district at a time, as the Census Bureau described each district. Each row opens its official National Archives result, with Population Schedules and ED Maps available there.
Every wildfire the federal occurrence database records inside this county: 1,926 of them, burning about 577,372 acres. 32 started naturally and 89 were recorded as arson. Each settlement page carries the fires within five miles of it.
| Reported cause | Fires |
|---|---|
| Missing data/not specified/undetermined | 886 |
| Equipment and vehicle use | 531 |
| Debris and open burning | 175 |
| Arson/incendiarism | 89 |
| Smoking | 77 |
| Power generation/transmission/distribution | 61 |
| Misuse of fire by a minor | 36 |
| Recreation and ceremony | 32 |
| Natural | 32 |
| Other causes | 3 |
| Railroad operations and maintenance | 2 |
| Firearms and explosives use | 1 |
| Fireworks | 1 |
The five largest, by the area the report gives. None of them was recorded as arson.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 17 August 2020 | Natural | 305,651 acres | Sonoma-Lake Napa Unit | HENNESSEY |
| 27 September 2020 | Equipment and vehicle use | 67,484 acres | Sonoma-Lake Napa Unit | GLASS |
| 8 October 2017 | Missing data/not specified/undetermined | 56,556 acres | Central California District | NUNS |
| 8 October 2017 | Missing data/not specified/undetermined | 51,624 acres | Central California District | ATLAS |
| 8 October 2017 | Missing data/not specified/undetermined | 36,807 acres | Central California District | TUBBS |
| 22 July 2015 | Equipment and vehicle use | 8,051 acres | Central California District | WRAGG |
| 4 July 2014 | Fireworks | 6,488 acres | Sonoma-Lake Napa Unit | MONTICELLO |
| 2 August 2016 | Equipment and vehicle use | 5,731 acres | Central California District | COLD |
Every settlement page carries the fires within five miles of it - see the settlement index below.
The NOAA Storm Events Database holds 93 reports for this county, causing 1 death, no injuries and about $115,217,530 in recorded property damage. Each settlement page carries the reports that name it.
| Kind of event | Reports |
|---|---|
| Flood | 35 |
| Debris Flow | 19 |
| Flash Flood | 14 |
| Heavy Rain | 12 |
| Hail | 7 |
| Thunderstorm Wind | 4 |
| Tornado | 1 |
| Lightning | 1 |
The most serious of them, by death, then injury, then recorded damage. The accounts are quoted exactly as the forecast office filed them.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| February 1996 | Flood | Calistoga | 1 killed | no account filed |
| January 2006 | Flood | Countywide | $115,000,000 | no account filed |
| January 2002 | Heavy Rain | Central Portion | $100,000 | no account filed |
| December 2010 | Heavy Rain | Yountville | $35,000 | Strong wind combined with heavy rain to force a substantial oak tree to fall at the Hotel Yountville in Yountville Sunday afternoon. The Oak tree was to have been a major focus of the landscaping plan. The tree fell onto a new rock wall and damaged a pump house. |
| March 2012 | Heavy Rain | (Apc)Napa Co Arpt | $30,000 | Motorists were involved in six rain-related accidents in Napa Valley. |
| October 2010 | Heavy Rain | Union | $30,000 | Heavy rain led to flooding on State Highway 29 under Trancas Street. Three vehicles crashed after losing control in the flooded underpass. Two of the vehicles collided while the other ran into a guard rail. No one was hurt. |
| October 2010 | Heavy Rain | Oak Knoll | $10,000 | Heavy rain caused rocks to fall onto State Highway 128 near Monticello dam at Lake Berryessa partially blocking the roadway. |
| October 2009 | Flood | Napa | $10,000 | The westbound lane of Imola Avenue at Lernhart Street near South Jefferson Street was closed due to flooding. Heavy rain along with overwhelmed storm drains caused the flooding. Also, minor rock and mud slides occurred across Butts Canyon Road just before the Lake County line. |
| December 2012 | Flood | Yountville | $1,000 | Hopper Creek rose to the top of the bridge on Finnell Road, overflowed down Mulberry Street, and flooded the south end of Heather Street. |
| December 2012 | Flood | Yountville | $1,000 | Washington Street was flooded on both sides of its intersection with California Drive for several hours early in the afternoon of December 23. The Napa Valley Wine train shortened its route due to water on the tracks. |
| November 2012 | Flood | Oak Knoll | $500 | Hopper Creek flooded residential streets beginning around 5 AM with the water subsiding after the rains ended later Friday morning. |
| February 2025 | Flood | Salvador | $10 | The southbound lane of Big Ranch Road at Oak Knoll Avenue was washed out, with the northbound lane flooded. |
| February 2024 | Thunderstorm Wind | Woodleaf | $10 | A large portion of a tree leaned against utility lines on Tubbs lane at California Highway 29. |
| November 2024 | Flood | Woodleaf | $10 | Landslide reported as completely blocking the southbound lanes of State Route 29 and Old Lawley Toll Road. About 6 to 8 feet of debris was reported on right hand side. |
| January 2026 | Flood | Salvador | - | A mudslide was reported on the 5000 block of Monticello Road (California Route 121). |
| January 2026 | Flood | Oakville | - | Rocks were coming onto the roadway on California Route 128 at Berryessa Knoxville Road. |
| February 2025 | Flood | Woodleaf | - | A rockslide was reported on State Route 29 just north of Tubbs Lane. |
| December 2025 | Flood | Salvador | - | Two large boulders blocked the northbound lane on California Highway 121 near Wild Horse Valley Road. |
| January 2024 | Flood | Rocktram | - | Standing water was reported in the slow lane on California Route 221 at California Route 29. |
| December 2024 | Flood | Sanitarium | - | Large rocks moved to the side of Deer Park Road at Sunnnyside Road. |
| January 2021 | Debris Flow | Yountville | - | Rock slide blocking roadway near 2000 Capell Valley Road. |
| August 2020 | Thunderstorm Wind | Yountville | - | Atlas Peak station reported. |
| January 2019 | Flood | Yountville | - | Flooding at NB Silverado Trail at Yountville Cross Rd. |
| January 2019 | Debris Flow | Salvador | - | Slide blocking EB lane and partially WB lane of SR 128 near Markley Cove. |
| January 2019 | Debris Flow | Salvador | - | Mudslide partially blocking EB lane of SR 128 and Wragg Canyon Road. |
| January 2019 | Flood | Imola | - | Flooding into the eastbound lane. |
| January 2019 | Flood | Sanitarium | - | Deer Park Road above Sunnyside Road is flooded. |
| February 2019 | Debris Flow | Angwin | - | Rock slide on Howell Mountain Rd at Sunset Dr. |
| February 2019 | Debris Flow | Salvador | - | Debris flow blocking almost entire roadway Sr-128 at Steele Canyon Rd. |
| February 2019 | Flood | Krug | - | Flooding at Deer Park jwo Silverado Trail, 6 inches of water. |
| February 2019 | Flood | Aetna Spgs | - | Roadway flooding, rocks in both lanes of Butts Canyon Rd between Snell Valley and Pope Valley. |
| February 2019 | Flood | Oak Knoll | - | Closing number 2 lane due to flooding on SR-29 and Hoffman Ln. |
| February 2019 | Flood | Pope Vly | - | Roadway flooding near Pope Valley Cross Rd and Pope Canyon Rd. |
| February 2019 | Flood | Pope Vly Arpt | - | Vehicle at Knoxville Rd and East Side Rd attempted to cross flooded roadway and was swept into the creek. Road had several feet of water and was closed due to flooding. |
| February 2019 | Debris Flow | Salvador | - | Mud slide in SB lane of SR 121 and Wooden Valley Rd. |
| February 2019 | Debris Flow | Salvador | - | Five miles of debris in either direction at SR 121 and Wooden Valley Rd. |
| February 2019 | Debris Flow | Krug | - | Debris flow partially blocking northbound lane on Silverado Trail N and Glass Mountain Rd. |
| February 2019 | Flood | West Napa | - | SR 12 at SR 121 northbound lanes flooded. |
| February 2019 | Flood | Oakville | - | Road flooded for approx 100 feet at 750 Oakville Cross Rd. |
| February 2019 | Debris Flow | Yountville | - | Several trees down and 3 or 4 rock slides along Knoxville Rd. |
| February 2019 | Debris Flow | Krug | - | Rock and mud blocking lane one on Silverado Trail. |
| February 2019 | Flood | Woodleaf | - | CHP reporting partial roadway flooded at Hwy 29 and Tubbs Ln. |
| January 2018 | Debris Flow | Lokoya | - | Uphill slippage reported on Redwood Road at mile marker 3.5 on the perimeter of the Nuns Fire burn scar. Exact time of occurrence is unknown. |
| November 2018 | Flood | West Napa | - | Golden Gate Dr in Napa area. |
| November 2018 | Debris Flow | Woodleaf | - | Rockslide entire sb lane. |
| January 2017 | Flash Flood | Krug | - | Heavy rain caused the Napa River at Lodi Lane in Saint Helena CA to exceed flood stage between 3:00-10:30 pm PST on January 10, 2017. |
| January 2017 | Flood | Salvador | - | Big Ranch Road completely under water at Salvador Ave. |
| January 2017 | Debris Flow | Lokoya | - | Mud slide covering west bound lane of Dry Creek Rd. |
| January 2017 | Flood | Yountville | - | Two feet of water in the road near Heather and Oak Circle. Road has been temporarily closed. |
| January 2017 | Debris Flow | Imola | - | Mud and rocks in roadway. State route 121 at wild horse. |
| January 2017 | Flood | Union | - | Brook wood Drive flooded near Brook wood Creek. Road closed until next week. |
| January 2017 | Flood | Krug | - | Deer Park Road between HWY 29 and Silverado Trail closed due to flooding. Yountville Cross road also impacted. |
| January 2017 | Debris Flow | St Helena | - | Mudslide reported at Silverado and Taplin Road. NB lanes blocked by water and mud. |
| March 2017 | Lightning | Napa | - | A tree was struck by lightning at Park Ave and Sonoma Street leaving thousands without power. Reported by the Napa Valley Register. |
| February 2017 | Debris Flow | Calistoga | - | Mud/rocks on Petrified Forest Rd/SR128. |
| February 2017 | Debris Flow | Salvador | - | Rocks blocking roadway Atlas Peak Rd near Westgate Dr. |
| February 2017 | Flash Flood | Krug | - | Napa River at Lodi Lane Stream gauge went above flood stage. |
| February 2017 | Flash Flood | Salvador | - | Milliken Creek at Atlas Peak Rd gauge above flood stage. |
| February 2017 | Flood | Salvador | - | Up to 1.5 feet of standing water on north side AKA WB side of the road 2200 Oak Knoll Ave. |
| January 2016 | Debris Flow | Woodleaf | - | Minor mud slide at SR29 and Old Lawley Road. One land partially blocked. |
The Survey's mineral resources record lists 327 workings inside this county. 41 still produce and 286 are closed or unrecorded. Each settlement page carries the workings within five miles of it.
| Commodity | Workings |
|---|---|
| Chromium | 98 |
| Mercury | 80 |
| Manganese | 32 |
| Sand and Gravel, Construction | 19 |
| Magnesite | 16 |
| Pumice | 14 |
| Stone | 9 |
| Copper | 9 |
| Clay | 8 |
| Stone, Crushed/Broken | 7 |
| Geothermal | 7 |
| Iron | 4 |
| Diatomite | 4 |
| Silver, Gold | 4 |
The least common of them first, because a county's hundredth gravel pit says nothing its first ten did not.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Antone Nichelini | Chromium, Platinum, Palladium, Iridium, Ruthenium, Rhodium | Producer | Chromite | |
| Grey Claim | Chromium, Rhodium, Iridium, Palladium, Platinum, Ruthenium | Past Producer | Chromite | |
| Knoxville Mine | Antimony | Occurrence | ||
| Moore Mine | Chromium, Rhodium, Ruthenium, Palladium, Platinum, Iridium | Past Producer | Chromite | |
| Moore Mine | Chromium, Iron | Prospect | 1918 | |
| Napa Evaporators | Salt | Producer | ||
| Palisade Mine | Silver, Gold, Lead, Copper | Past Producer | ||
| Silverado-Palisade Deposit | Gold, Silver, Lead, Copper, Arsenic, Antimony, Zinc, Mercury | Past Producer | 1858 | |
| Unnamed Location | Flagstone | Occurrence | ||
| Unnamed Location | Gemstone | Occurrence | ||
| Unnamed Quarries | Limestone, General, Clay | Prospect | Sedimentary | |
| Basalt Rock Co | Stone, Dimension | Producer | ||
| Juarez Quarry | Stone, Dimension | Producer | ||
| Mc Laughlin Mine | Gold, Silver | Plant | 1979, 1985 | |
| Palisade | Silver, Gold, Lead, Copper, Mercury | Past Producer | ||
| Silverado Mine | Silver, Gold | Past Producer | ||
| Unknown | Perlite | Occurrence | ||
| Unnamed Location | Perlite | Occurrence | ||
| Monticello Asbestos Mine | Asbestos | Past Producer | ||
| Phoenix Kohler And | Asbestos | Occurrence | ||
| Phoenix Kohler and Chase Asbestos Quarry | Asbestos | Occurrence | 1908 | |
| Unnamed Location | Limestone, Dimension | Occurrence | ||
| Unnamed Location | Limestone, Dimension, Clay | Occurrence | ||
| Unnamed Quarries | Limestone, Dimension, Clay | Prospect | ||
| Basalt Rock Co | Diatomite | Producer | Sedimentary | |
| Basalt Rock Co. | Diatomite | Occurrence | Sedimentary | |
| Basalt Rock Co. Quarry, Possibly | Diatomite | Producer | Sedimentary | |
| Calistoga | Silver, Gold | Producer | ||
| Diatomite Occurrence | Diatomite | Past Producer | ||
| Palisade Mine Grigsby | Silver, Gold | Producer | ||
| Silverado Mine Calistoga Mount St. Helena | Silver, Gold | Producer | ||
| Stirling | Iron | Occurrence | Hematite | |
| Stirling | Iron | Unknown | ||
| Unknown | Iron | Occurrence | ||
| Unnamed Location | Iron | Unknown | ||
| Unnamed Location | Silver | Unknown | ||
| Aetna Springs | Geothermal | Unknown | ||
| Basalt Rock Company, Inc. | Stone, Crushed/Broken | Occurrence | ||
| Calistoga | Geothermal | Unknown | ||
| Glass Mountain Deposit | Stone, Crushed/Broken | Prospect | ||
| Jacksons Springs | Geothermal | Unknown | ||
| Juarez Quarry | Stone, Crushed/Broken | Occurrence | ||
| Napa Quarry | Stone, Crushed/Broken | Producer | ||
| Napa Quarry | Stone, Crushed/Broken | Producer | ||
| Napa Rock Soda Springs | Geothermal | Unknown | ||
| Napa Valley Stone | Stone, Crushed/Broken | Producer | ||
| One-Shot Mining Co. | Geothermal | Unknown | ||
| Unknown | Stone, Crushed/Broken | Occurrence | Sedimentary | |
| Unnamed Location | Geothermal | Occurrence | ||
| Walter Springs | Geothermal | Unknown | ||
| Basalt Rock Co | Clay | Producer | ||
| Basalt Rock Co | Clay | Producer | ||
| Clark and March Kaolin Mine | Clay | Prospect | Sedimentary | |
| Clark and Marsh Kaolin | Clay | Occurrence | ||
| Clark and Marsh Kaolin Mine | Clay | Prospect | Sedimentary | |
| Clark and Marsh Kaolin Mine | Clay | Prospect | ||
| Glass Mountain Deposit | Stone | Occurrence | Obsidian | |
| Juniper Group | Copper | Occurrence | ||
| Juniper Group | Copper | Occurrence | ||
| Napa Copper | Copper | Occurrence | Underground | |
| Napa Copper Claim | Copper | Past Producer | ||
| Napa Junction Plant | Stone | Unknown | ||
| S. Lenz and Son Basalt Quarry and Plant. | Stone | Occurrence | ||
| S. Lnz. and Sn Bslt Qrry and Plnt | Stone | Prospect | ||
| Search Group | Copper | Occurrence | ||
| Search Group | Copper | Prospect | ||
| Unnamed Location | Stone | Occurrence | ||
| Unnamed Location | Stone | Occurrence | ||
| Unnamed Location | Stone | Occurrence | ||
| Unnamed Location | Copper | Occurrence | ||
| Unnamed Location | Stone | Occurrence | ||
| Unnamed Location | Stone | Occurrence | ||
| White Rock | Copper | Occurrence | ||
| White Rock | Copper | Occurrence | ||
| Cicero Pumice Quarry | Pumice | Occurrence | ||
| Cicero Pumice Quarry | Pumice | Prospect | ||
| Mount George King | Pumice | Occurrence | ||
| Mount George King Pumice Deposit. | Pumice | Occurrence | ||
| Mt George Pumice Deposit | Pumice | Producer | ||
| Mt George Pumice Deposit | Pumice | Prospect | ||
| Pumice Deposit | Pumice | Occurrence | ||
| Pumice Deposit | Pumice | Prospect | ||
| Silva Pumice Quarry | Pumice | Occurrence | ||
| Silva Pumice Quarry | Pumice | Producer | ||
| Walker Pumice Quarry | Pumice | Occurrence | ||
| Walker Pumice Quarry | Pumice | Producer | ||
| Wilson Pumice Quarry | Pumice | Occurrence | ||
| Wilson Pumice Quarry | Pumice | Occurrence | ||
| Berthenia Mine | Magnesite | Occurrence | Magnesite | |
| Berthenia Mine | Magnesite | Occurrence | ||
| Elder | Magnesite | Past Producer | ||
| Elder Mine Matthai, Cleveland | Magnesite | Occurrence | Magnesite | |
| Maltby No 2 Mine | Magnesite | Past Producer | ||
| Maltby No. 2 Mine Blanco and Snowflake | Magnesite | Occurrence | Magnesite | |
| Priest Mine | Magnesite | Occurrence | Magnesite | |
| Priest Mine | Magnesite | Prospect | ||
| Russel Deposit | Magnesite | Unknown | ||
| Russell Deposit | Magnesite | Occurrence | Magnesite | |
| Unknown | Magnesite | Occurrence | Magnesite | |
| Unnamed Location | Magnesite | Producer | ||
| Unnamed Location | Magnesite | Prospect | ||
| White Rock Mine | Magnesite | Past Producer | ||
| White Rock Mine | Magnesite | Prospect | ||
| White Rock Mine Pope Valley, Walters | Magnesite | Producer | Magnesite | |
| Harold Smith & Sons Construction | Sand and Gravel, Construction | Producer | ||
| Manhatten Mine | Mercury, Sand and Gravel, Construction | Past Producer | ||
| Mcgill Rock and Sand | Sand and Gravel, Construction | Occurrence | ||
| Napa River Pit | Sand and Gravel, Construction | Producer | ||
| Pope Creek Pits | Sand and Gravel, Construction | Producer | ||
| Ray's Base Plant | Sand and Gravel, Construction | Producer | ||
| Ray's Rock Sand and Gravel Pit | Sand and Gravel, Construction | Producer | ||
| Roderick Sand and Gravel Pit | Sand and Gravel, Construction | Occurrence | ||
| Roderick Sand and Gravel Pit | Sand and Gravel, Construction | Producer | ||
| Smith Gravel Pit | Sand and Gravel, Construction | Occurrence | ||
| Smith Gravel Pit | Sand and Gravel, Construction | Past Producer | ||
| Sulfur Creek Pit | Sand and Gravel, Construction | Producer | ||
| Unnamed Location | Sand and Gravel, Construction | Past Producer | Sedimentary | |
| Unnamed Location | Sand and Gravel, Construction | Unknown | ||
| Unnamed Location | Sand and Gravel, Construction | Producer | ||
| Unnamed Quarry | Sand and Gravel, Construction | Past Producer | Sedimentary | |
| Unnamed Quarry | Sand and Gravel, Construction | Past Producer | Sedimentary | |
| Unnamed Quarry | Sand and Gravel, Construction | Producer | ||
| Unnamed Quarry | Sand and Gravel, Construction | Producer | ||
| Adams and Westendorf | Manganese | Occurrence | ||
| Adams and Westendorf Claims | Manganese | Occurrence | 1918 | |
| Bacon and Kenney Prospect | Manganese | Prospect | ||
| Bacon and Kenney Prospect | Manganese | Prospect | ||
| Blue Monday Claim | Manganese | Occurrence | 1916 | |
| Blue Monday Searchlight, Surprise | Manganese | Occurrence | ||
| Cavagnaro Prospect | Manganese | Occurrence | ||
| Cavagnaro Prospect | Manganese | Occurrence | 1917 | |
| Conn Valley | Manganese | Occurrence | ||
| Conn Valley Prospect | Manganese | Occurrence | 1942 | |
| Hastings Deposit | Manganese | Occurrence | ||
| Hastings Prospect | Manganese | Occurrence | 1918 | |
| Lewis | Manganese | Occurrence | ||
| Lewis | Manganese | Occurrence | ||
| Liberty | Manganese | Occurrence | ||
| Liberty Claim | Manganese | Occurrence | 1918 | |
| Lombardi | Manganese | Occurrence | ||
| Moore Creek Manganese Ridge Prospect | Manganese | Producer | ||
| Moore Creek Prospect | Manganese | Past Producer | 1918 | |
| Nichelini | Manganese | Occurrence | ||
| Paul Lombardi | Manganese | Occurrence | ||
| Powers | Manganese | Prospect | Psilomelane | |
| Powers Mine | Manganese | Prospect | 1918 | |
| Rice & Jacobson | Manganese | Occurrence | ||
| Ries and Jacobsen | Manganese | Occurrence | ||
| Ries and Jacobsen Prospect | Manganese | Prospect | 1918 | |
| Unnamed Location | Manganese | Occurrence | ||
| Unnamed Location | Manganese | Occurrence | ||
| Unnamed Location | Manganese | Occurrence | ||
| Wallace | Manganese | Occurrence | ||
| Wallace Prospect | Manganese | Occurrence | 1918 | |
| Wallace Prospect | Manganese | Occurrence | ||
| Aetna | Mercury | Past Producer | 1854 | |
| Aetna Extension | Mercury | Occurrence | 1895 | |
| Bella Oak | Mercury | Past Producer | 1868 | |
| Calistoga Hot Springs | Mercury | Occurrence | Cinnabar | |
| Calistoga Hot Springs | Mercury | Unknown | ||
| Corona | Mercury | Producer | 1895 | |
| Corona Mine | Mercury | Past Producer | ||
| Enterprise Engineering | Mercury | Occurrence | ||
| Enterprise Engineering Company - Pope Creek Placers | Mercury | Occurrence | Placer | |
| Granada | Mercury | Past Producer | 1929 | |
| Granada Mine | Mercury | Prospect | ||
| Ivanhoe | Mercury | Past Producer | 1900 | |
| Ivanhoe Mine | Mercury | Past Producer | ||
| James Creck Placer | Mercury | Producer | 1915 | |
| Kellett | Mercury | Past Producer | 1875 | |
| Kellett Mine | Mercury | Prospect | ||
| Knoxville Mine | Mercury | Past Producer | 1860, 1862 | |
| La Joya | Mercury | Past Producer | 1865 | |
| Lajoya Mine | Mercury | Prospect | ||
| Manhattan | Mercury | Producer | 1865 | |
| Manhattan Mine | Mercury | Producer | ||
| Mountain | Mercury | Occurrence | ||
| Northern Light | Mercury | Occurrence | Cinnabar | |
| Oakville | Mercury | Producer | ||
| Oat Hill Extension Mine | Mercury | Past Producer | 1932 | |
| Oat Hill Mine | Mercury | Past Producer | 1872, 1876 | |
| Oat Hill Mine (Facility) | Mercury | Plant | ||
| Philadelphia | Mercury | Occurrence | Float | |
| Philadelphia | Mercury | Occurrence | ||
| Philladelphia | Mercury | Occurrence | ||
| Plymouth Mine | Mercury | Unknown | ||
| Pope Creek Placers | Mercury | Past Producer | Placer | |
| Prospect Pit | Mercury | Occurrence | ||
| Prospect Pit | Mercury | Occurrence | ||
| R H Travis and Associates | Mercury | Occurrence | ||
| Scott Ranch | Mercury | Occurrence | ||
| Scott Ranch Property | Mercury | Occurrence | ||
| Summit | Mercury | Occurrence | Cinnabar | |
| Summit Mine | Mercury | Prospect | ||
| Toyon Mine | Mercury | Producer | ||
| Toyon Mine | Mercury | Prospect | ||
| Twin Peaks | Mercury, Chromium | Past Producer | 1902 | |
| Twin Peaks Mine | Mercury | Occurrence | ||
| Twin Peaks Mine | Mercury | Past Producer | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unknown | Mercury | Occurrence | ||
| Unnamed Location | Mercury | Prospect | ||
| Unnamed Location | Mercury | Occurrence | ||
| Unnamed Location | Mercury | Occurrence | ||
| Unnamed Location | Mercury | Occurrence | ||
| Unnamed Location | Mercury | Unknown | ||
| Unnamed Location | Mercury | Occurrence | ||
| Unnamed Location | Mercury | Occurrence | ||
| Unnamed Location | Mercury | Occurrence | ||
| Unnamed Location | Mercury | Occurrence | ||
| Unnamed Location | Mercury | Occurrence | ||
| Unnamed Location | Mercury | Occurrence | ||
| Unnamed Quicksilver | Mercury | Occurrence | ||
| Unnamed Quicksilver | Mercury | Occurrence | ||
| Unnamed Quicksilver | Mercury | Occurrence | ||
| Unnamed Quicksilver | Mercury | Occurrence | ||
| Valley | Mercury | Past Producer | Cinnabar | |
| Valley | Mercury | Prospect | ||
| Whitney | Mercury | Past Producer | Cinnabar | |
| Whitney Mine | Mercury | Prospect | ||
| Williamson Lease | Mercury | Past Producer | Placer | |
| Williamson Lease | Mercury | Occurrence | ||
| Astute Mine | Chromium | Occurrence | Chromite | |
| Astute Mine | Chromium | Prospect | ||
| Black Hawk Claim | Chromium | Occurrence | Chromite | |
| Black Hawk Claim | Chromium | Past Producer | ||
| Blue Jay | Chromium | Occurrence | ||
| Buzzard | Chromium | Prospect | ||
| Buzzard No 2 | Chromium | Prospect | ||
| Cedar Rough | Chromium | Prospect | ||
| Chrome Center Claim | Chromium | Occurrence | Chromite | |
| Chrome Center Claim | Chromium | Past Producer | ||
| Cigarette Mine | Chromium | Occurrence | Chromite | |
| Cigarette Mine | Chromium | Prospect | ||
| Crystal Creek Claim | Chromium | Occurrence | Chromite | |
| Crystal Creek Claim | Chromium | Past Producer | ||
| Dollerhyde Claim | Chromium | Occurrence | Chromite | |
| Dollerhyde Claim | Chromium | Prospect | ||
| Dottie D | Chromium | Prospect | ||
| Eagle | Chromium | Prospect | ||
| Elder Claim | Chromium | Occurrence | Chromite | |
| Elder Claim | Chromium | Past Producer | ||
| Ferris Claim | Chromium | Occurrence | Chromite | |
| Ferris Claim | Chromium | Past Producer | ||
| Fourth of July Claim | Chromium | Occurrence | Chromite | |
| Fourth of July Claim | Chromium | Past Producer | ||
| Glad I Found You No. 2 Claim | Chromium | Occurrence | Chromite | |
| Glad I Found You No. 2 Claim | Chromium | Occurrence | ||
| Graves Mine | Chromium | Occurrence | Chromite | |
| Graves Mine | Chromium | Past Producer | ||
| Graves Ranch Deposit | Chromium | Occurrence | Chromite | |
| Graves Ranch Deposit | Chromium | Past Producer | ||
| Grey Claim | Chromium | Past Producer | ||
| Hampton | Chromium | Prospect | ||
| Hightower Claim | Chromium | Occurrence | Chromite | |
| Hightower Claim | Chromium | Past Producer | ||
| Honolulu Lady Claim | Chromium | Prospect | ||
| Knoxville | Chromium | Occurrence | ||
| Linnie P | Chromium | Prospect | ||
| Lost Horse | Chromium | Prospect | ||
| Meadow | Chromium | Prospect | ||
| Mistake | Chromium | Prospect | ||
| Mullaly Mine | Chromium | Occurrence | Chromite | |
| Nevada Claim | Chromium | Occurrence | Chromite | |
| Nevada Claim | Chromium | Occurrence | ||
| Nichelini Mine | Chromium | Past Producer | 1918 | |
| Reave Claims Three Claims | Chromium | Occurrence | Chromite | |
| Reeve Claims | Chromium | Prospect | ||
| Samuel Springs Claims | Chromium | Occurrence | Chromite | |
| Samuel Springs Claims | Chromium | Occurrence | Chromite | |
| Samuel Springs Claims | Chromium | Occurrence | Chromite | |
| Samuel Springs Claims | Chromium | Occurrence | Chromite | |
| Samuel Springs Claims | Chromium | Occurrence | Chromite | |
| Sullinger Claim | Chromium | Occurrence | Chromite | |
| Sullinger Claim | Chromium | Prospect | ||
| Tarry Claim | Chromium | Occurrence | Chromite | |
| Tarry Claim | Chromium | Past Producer | ||
| Turner Mine | Chromium | Occurrence | Chromite | |
| Turner Mine | Chromium | Past Producer | ||
| Unknown | Chromium | Occurrence | Chromite | |
| Unknown | Chromium | Occurrence | Chromite | |
| Unknown | Chromium | Occurrence | Chromite | |
| Unknown | Chromium | Occurrence | Chromite | |
| Unknown | Chromium | Occurrence | Chromite | |
| Unknown | Chromium | Occurrence | Chromite | |
| Unknown | Chromium | Occurrence | Chromite | |
| Unknown | Chromium | Occurrence | Chromite | |
| Unknown | Chromium | Occurrence | Chromite | |
| Unnamed Chromite | Chromium | Occurrence | ||
| Unnamed Chromite | Chromium | Prospect | ||
| Unnamed Location | Chromium | Producer | ||
| Unnamed Location | Chromium | Producer | ||
| Unnamed Location | Chromium | Producer | ||
| Unnamed Location | Chromium | Occurrence | ||
| Unnamed Location | Chromium | Occurrence | ||
| Unnamed Location | Chromium | Occurrence | ||
| Unnamed Location | Chromium | Occurrence | ||
| Unnamed Location | Chromium | Occurrence | ||
| Unnamed Location | Chromium | Occurrence | ||
| Unnamed Location | Chromium | Prospect | ||
| Unnamed Location | Chromium | Occurrence | ||
| Unnamed Location | Chromium | Prospect | ||
| Unnamed Location | Chromium | Prospect | ||
| Unnamed Location | Chromium | Occurrence | ||
| Unnamed Location | Chromium | Occurrence | ||
| Unnamed Prospect | Chromium | Occurrence | Chromite | |
| Unnamed Prospect | Chromium | Occurrence | Chromite | |
| Unnamed Prospect | Chromium | Occurrence | Chromite | |
| Unnamed Prospect | Chromium | Occurrence | Chromite | |
| Unnamed Prospect | Chromium | Occurrence | Chromite | |
| Unnamed Prospect | Chromium | Occurrence | ||
| Unnamed Prospect | Chromium | Prospect | ||
| Unnamed Prospect | Chromium | Prospect | ||
| Viola | Chromium | Prospect | ||
| White Angel | Chromium | Occurrence | Chromite | |
| White Angel | Chromium | Occurrence |
Named settlements recorded in the Geographic Names Information System, each with the topographic sheets covering it. Villages, hamlets and abandoned places alike. Each is shown with the nearest named watercourse or landform and the survey quadrangle it falls on.
Calistoga census division · 94567 · On James Creek · Aetna Springs quadrangle
22 sheets, 1942 to 1998
Napa census division · 94503 · Near Oat Hill · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Angwin census division · 94508 · Near Sentinel Hill · Saint Helena quadrangle
21 sheets, 1942 to 1972
Napa census division · 94558 · Near Foss Valley · Capell Valley quadrangle
25 sheets, 1902 to 1983
St. Helena census division · 94515 · On Ritchey Creek · Calistoga quadrangle
24 sheets, 1927 to 1997
St. Helena census division · 94574 · On CaƱon Creek · Saint Helena quadrangle
21 sheets, 1942 to 1972
Lake Berryessa census division · 94558 · Near Steel Canyon · Lake Berryessa quadrangle
20 sheets, 1924 to 1998
Napa census division · 94559 · On Carneros Creek · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Calistoga census division · 94515 · Near Kortum Canyon · Calistoga quadrangle
24 sheets, 1927 to 1997
Napa census division · 94559 · Near Bull Island · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
No longer a settlement
Napa census division · 94599 · On Conn Creek · Yountville quadrangle
25 sheets, 1902 to 1983
No longer a settlement
Napa census division · 94503 · On American Canyon Creek · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Napa census division · 94559 · Near Bull Island · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Angwin census division · 94574 · Near Glass Mountain · Saint Helena quadrangle
21 sheets, 1942 to 1972
Napa census division · 94558 · On Elkington Creek · Rutherford quadrangle
25 sheets, 1902 to 1983
Angwin census division · 94508 · On Howell Mountain · Saint Helena quadrangle
21 sheets, 1942 to 1972
St. Helena census division · 94574 · On York Creek · Saint Helena quadrangle
21 sheets, 1942 to 1972
Calistoga census division · 94515 · On Biter Creek · Calistoga quadrangle
24 sheets, 1927 to 1997
Napa census division · 94503 · Near Oat Hill · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Napa census division · 94503 · Near Oat Hill · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Napa census division · 94503 · Near Oat Hill · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Lake Berryessa census division · 94558 · Near Oil Well Canyon · Lake Berryessa quadrangle
20 sheets, 1924 to 1998
No longer a settlement
Napa census division · 94503 · Near Oat Hill · Cordelia quadrangle
29 sheets, 1902 to 1983
Napa census division · 94558 · Near Castle Peak · Yountville quadrangle
25 sheets, 1902 to 1983
St. Helena census division · 94558 · On To Kalon Creek (not official) · Rutherford quadrangle
25 sheets, 1902 to 1983
Napa census division · 94558 · On Suscol Creek · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Lake Berryessa census division · 94558 · Near Portuguese Canyon · Lake Berryessa quadrangle
20 sheets, 1924 to 1998
No longer a settlement
St. Helena census division · 94573 · On Bale Slough · Rutherford quadrangle
25 sheets, 1902 to 1983
St. Helena census division · 94574 · On Sulphur Creek · Saint Helena quadrangle
21 sheets, 1942 to 1972
Angwin census division · 94574 · Near Italian Valley · Saint Helena quadrangle
21 sheets, 1942 to 1972
Napa census division · 94558 · On Tulucay Creek · Napa quadrangle
25 sheets, 1902 to 1983
Lake Berryessa census division · 94558 · Near Quarry Canyon · Lake Berryessa quadrangle
20 sheets, 1924 to 1998
Lake Berryessa census division · 94558 · Near Steel Canyon · Lake Berryessa quadrangle
20 sheets, 1924 to 1998
Napa census division · 94503 · Near Oat Hill · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Napa census division · 94558 · Near Home Hill · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Lake Berryessa census division · 94558 · Near Steel Canyon · Lake Berryessa quadrangle
20 sheets, 1924 to 1998
Napa census division · 94558 · On Suscol Creek · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
St. Helena census division · 94574 · On Sulphur Creek · Rutherford quadrangle
25 sheets, 1902 to 1983
Napa census division · 94558 · On Suscol Creek · Cuttings Wharf quadrangle
29 sheets, 1902 to 1983
Angwin census division · 94508 · Near Mill Valley · Saint Helena quadrangle
21 sheets, 1942 to 1972
Napa census division · 94558 · On Sarco Creek · Napa quadrangle
25 sheets, 1902 to 1983
Lake Berryessa census division · 94567 · On Maxwell Creek · Walter Springs quadrangle
20 sheets, 1942 to 1972
Calistoga census division · 94515 · On Blossom Creek · Calistoga quadrangle
24 sheets, 1927 to 1997
Napa census division · 94599 · On Conn Creek · Yountville quadrangle
25 sheets, 1902 to 1983
The vanished settlements of Napa County: the places named above that are no longer on the map.