BlockFrom the record
One of 73 National Register listings published here for Sonoma County · listed in 1978 · category: Building.
Sources: the case file at the National Archives · the National Register database, National Park Service
Llano Road Roadhouse
Listed on the National Register of Historic Places in 1978. 10 historic topographic surveys show this location, the earliest from 1935.
The listing
- What is counted as historic. The nomination lists 1 building as contributing to the listing.
- Address. 4353 Gravenstein Hwy., S, Sebastopol, 95472
- When was it listed? May 1978
- Category. building
- Census division. Sebastopol
- National Register reference number. 78000804 - the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.
Then and now
1935 to 1983The ground this property stands on, surveyed 48 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.
Fires near this property
280 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 280 fires within 5 miles of Llano Road Roadhouse between 1992 and 2020, burning about 325 acres in total. None started naturally. 16 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 | 136 |
| Equipment and vehicle use | 91 |
| Smoking | 17 |
| Arson/incendiarism | 16 |
| Debris and open burning | 9 |
| Power generation/transmission/distribution | 7 |
| Misuse of fire by a minor | 4 |
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 2010 | Equipment and vehicle use | 6.0 acres | Sonoma-Lake Napa Unit | VALLEY 2 |
| 8 September 2007 | Missing data/not specified/undetermined | 1.0 acres | California Department of Forestry & Fire Protection | not named |
| 7 September 2003 | Missing data/not specified/undetermined | under an acre | Sonoma-Lake Napa Unit | 101 |
| 6 September 1999 | Equipment and vehicle use | under an acre | Sonoma-Lake Napa Unit | GREEN MILL |
| 5 September 2002 | Missing data/not specified/undetermined | under an acre | Sonoma-Lake Napa Unit | PETALUMA |
| 4 September 2007 | Missing data/not specified/undetermined | 1.0 acres | Sonoma-Lake Napa Unit | HWY 101 /W RAILROAD A 11 |
| 4 September 2007 | Missing data/not specified/undetermined | under an acre | Sonoma-Lake Napa Unit | not named |
| 30 September 2001 | Equipment and vehicle use | 5.0 acres | Sonoma-Lake Napa Unit | RYSKA |
Mines and quarries near this property
6 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 6 workings within 5 miles of Llano Road Roadhouse: 3 producers, 2 past producers, 1 prospect. 3 still produce. What was taken out: Stone, Crushed/Broken, Gold, Stone, Quartz. 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 |
|---|---|---|---|---|
| Stony Point Quarry and Mill | Stone | Producer | ||
| Unnamed Location | Quartz | Prospect | ||
| Bloomfield Quarry and Mill | Stone, Crushed/Broken | Past Producer | ||
| Stony Point Quarry | Stone, Crushed/Broken | Producer | ||
| Unnamed Location | Gold | Producer | ||
| Unnamed Location | Gold | Past Producer |
Storms near this property
8 since 2014Regional context, not property-specific evidence. The National Weather Service names Sebastopol, the town this property stands in, in 8 storm reports between 2014 and 2019: 6 flood, 1 heavy rain, 1 funnel cloud. 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 |
|---|---|---|---|---|
| February 2019 | Flood | Sebastopol | - | Roadway flooding SR 116 and Sparkes Rd. |
| February 2019 | Flood | Sebastopol | - | All lanes flooded, Pleasant Hill Rd and Bodega Ave. |
| February 2019 | Flood | Sebastopol | - | Flooding in westbound lane of 116 at Sparkes Rd. |
| November 2019 | Flood | Sebastopol | - | Flooding in SB lanes of Watertrough Rd and Blackney, vehicles are hydroplaning due to large amount of water in the roadway. |
| February 2017 | Flood | Sebastopol | - | Roadway flooding reported at Pleasant Hill Rd and Grundel Drive. |
| January 2016 | Flood | Sebastopol | - | Roadway flooded on Pleasant Hill Road at Mitchell Court. Roadway was completely flooded. |
| May 2015 | Funnel Cloud | Sebastopol | - | Possible funnel cloud spotted in Sebastopol. Two photographs submitted. |
| September 2014 | Heavy Rain | Sebastopol | - | Rainfall accumulated in 5 minutes. Lightning and thunder observed along with very small hail. |
Maps showing this location
10 surveysUnited States Geological Survey topographic sheets whose coverage includes this point. Matched by taking the coordinate the National Park Service records for this property, then testing that coordinate against the published boundary of every sheet.
- 1935 USGS Sebastopol quadrangle1:48000
- 1942 USGS Sebastopol quadrangle1:62500 - 3 printings
- 1947 USGS Santa Rosa quadrangle1:250000
- 1949 USGS Santa Rosa quadrangle1:250000 - 2 printings
- 1954 USGS Sebastopol quadrangle1:62500
- 1954 USGS Two Rock quadrangle1:24000 - 3 printings
- 1958 USGS Santa Rosa quadrangle1:250000 - 3 printings
- 1962 USGS Santa Rosa quadrangle1:250000
- 1964 USGS Santa Rosa quadrangle1:250000
- 1983 USGS Napa quadrangle1:100000
Listed places nearby
6 within 8 milesOther National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.
| Photograph | Property | Distance | Listed |
|---|---|---|---|
 | Sebastopol Depot of the Petaluma and Santa Rosa Railway | 4.2 miles | 1996 |
 | Petaluma and Santa Rosa Railway Powerhouse | 4.2 miles | 1991 |
 | George A. Strout House | 4.5 miles | 1980 |
 | Gold Ridge Farm | 4.5 miles | 1978 |
 | Gables, The | 4.8 miles | 1984 |
 | Railroad Square District | 6.1 miles | 2025 |
Sources for this property
| National Archives record | The nomination case file for reference 78000804 in Record Group 79. |
| Sonoma County | All 73 listed properties in this county. |
Provenance
- Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
- Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
- How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
- 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.