Sanitarium, California
21 topographic sheets cover this place, the earliest surveyed in 1942 and the latest in 1972. It stands in the Angwin census division. It lies in ZIP code area 94574. It lies near Italian Valley. The Survey maps it on the Saint Helena quadrangle. It stands 587 feet above sea level.
Then and now
1942 to 1972The same ground, surveyed 30 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


On record in Sanitarium
Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.
On the National Register within a mile 1 record
The National Register names another town for these. They stand within one mile of this settlement's coordinate.
ElmshavenNational Historic Landmark · listed 1993 · 0.6 miles away
Topographic sheets covering this place
10 surveys from 21 printed sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1942 USGS St. Helena quadrangle1:62500
- 1945 USGS St. Helena quadrangle1:62500, 2 printings
- 1947 USGS Santa Rosa quadrangle1:250000
- 1949 USGS Santa Rosa quadrangle1:250000, 2 printings
- 1958 USGS Santa Rosa quadrangle1:250000, 3 printings
- 1960 USGS St. Helena quadrangle1:62500, 2 printings
- 1960 USGS St. Helena quadrangle1:24000, 6 printings
- 1962 USGS Santa Rosa quadrangle1:250000
- 1964 USGS Santa Rosa quadrangle1:250000
- 1972 USGS Healdsburg quadrangle1:100000, 2 printings
Fires near this place
271 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 271 fires within 5 miles of Sanitarium between 1992 and 2020, burning about 68,270 acres in total. 3 started naturally. 15 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.
| Reported cause | Fires |
|---|---|
| Missing data/not specified/undetermined | 110 |
| Equipment and vehicle use | 76 |
| Debris and open burning | 42 |
| Arson/incendiarism | 15 |
| Smoking | 12 |
| Power generation/transmission/distribution | 10 |
| Natural | 3 |
| Recreation and ceremony | 3 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 8 September 2014 | Equipment and vehicle use | under an acre | Sonoma-Lake Napa Unit | SPRING |
| 8 September 2004 | Equipment and vehicle use | under an acre | Sonoma-Lake Napa Unit | WEST |
| 7 September 1992 | Arson/incendiarism | 1.0 acres | Sonoma-Lake Napa Unit | CLOVER |
| 6 September 2007 | Equipment and vehicle use | 1.0 acres | Sonoma-Lake Napa Unit | SPRING WHITE 2 |
| 5 September 2003 | Missing data/not specified/undetermined | 4.0 acres | Sonoma-Lake Napa Unit | SMOKEY OAK |
| 28 September 2007 | Smoking | under an acre | Sonoma-Lake Napa Unit | LAS POSADAS RD ANGWIN 22 |
| 27 September 2020 | Equipment and vehicle use | 67,484 acres | Sonoma-Lake Napa Unit | GLASS |
| 25 September 2010 | Equipment and vehicle use | 29 acres | Sonoma-Lake Napa Unit | CONN |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 24 shownRegional context, not property-specific evidence. The federal mineral resources record lists 24 workings within 5 miles of Sanitarium: 11 occurrences, 5 producers, 4 prospects, 3 past producers. 5 still produce. What was taken out: Sand and Gravel, Construction, Mercury, Stone, Chromium. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Glass Mountain Deposit | Stone, Crushed/Broken | Prospect | ||
| Unnamed Location | Perlite | Occurrence | ||
| Unnamed Location | Iron | Unknown | ||
| Moore Creek Manganese Ridge Prospect | Manganese | Producer | ||
| Moore Creek Prospect | Manganese | Past Producer | 1918 | |
| Reave Claims Three Claims | Chromium | Occurrence | Chromite | |
| Reeve Claims | Chromium | Prospect | ||
| Sullinger Claim | Chromium | Occurrence | Chromite | |
| Glass Mountain Deposit | Stone | Occurrence | Obsidian | |
| Kellett | Mercury | Past Producer | 1875 |
Storms near this place
2 since 2019Regional context, not property-specific evidence. The National Weather Service names Sanitarium in 2 storm reports between 2019 and 2024: 2 flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| December 2024 | Flood | Sanitarium | - | Large rocks moved to the side of Deer Park Road at Sunnnyside Road. |
| January 2019 | Flood | Sanitarium | - | Deer Park Road above Sunnyside Road is flooded. |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Deer Park | 0.9 miles | 21 | |
| Barro | 1.6 miles | 21 | |
| Krug | 1.9 miles | 21 | |
| Bale | 2.0 miles | 24 | |
| Angwin | 2.5 miles | 21 | |
| Larkmead | 2.7 miles | 24 | |
| Saint Helena | 2.8 miles | 21 | |
| Howell Mountain | 2.8 miles | 21 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on Sanitarium | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q7418309 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 1659594. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.









