BlockBefore

Simerson, California

16 topographic sheets cover this place, the earliest surveyed in 1922 and the latest in 1991. It stands in the Willits census division. It lies in ZIP code area 95490. It stands on Mill Creek. The Survey maps it on the Willits quadrangle. It stands 1,378 feet above sea level.

Simerson within Mendocino County

Then and now

1922 to 1991

The same ground, surveyed 69 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Simerson, surveyed 1991
Topographic sheet of Simerson, surveyed 1922

Compare 1922 against another survey:

On record in Simerson

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 4 records

The National Register names another town for these. They stand within one mile of this settlement's coordinate.

Topographic sheets covering this place

8 surveys from 16 printed sheets

Matched 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.

Fires near this place

294 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 294 fires within 5 miles of Simerson between 1992 and 2020, burning about 438 acres in total. 8 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/undetermined111
Debris and open burning52
Equipment and vehicle use45
Misuse of fire by a minor20
Arson/incendiarism16
Railroad operations and maintenance15
Smoking10
Power generation/transmission/distribution8
Natural8
Recreation and ceremony7
Other causes2

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

DateCause SizeReported by Name on the report
7 September 2015Equipment and vehicle useunder an acreMendocino UnitWELL
7 September 2007Equipment and vehicle use1.0 acresMendocino UnitPOPPY 3
5 September 2015Railroad operations and maintenance1.6 acresMendocino UnitSUMMIT
5 September 1992Equipment and vehicle use2.0 acresMendocino UnitP. G. & E. #12
4 September 2018Missing data/not specified/undeterminedunder an acreCalifornia Department of Forestry & Fire ProtectionFANBLADE
4 September 2011Missing data/not specified/undeterminedunder an acreMendocino UnitPOPPY
30 September 2003Smokingunder an acreMendocino UnitGARNER
30 September 1999Missing data/not specified/undeterminedunder an acreMendocino UnitSMITH

Settlements close enough to share some of these fires:

Every fire recorded in Mendocino County

Mines and quarries near this place

10 of 16 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 16 workings within 5 miles of Simerson: 8 producers, 4 prospects, 2 occurrences, 1 unknown. 8 still produce. What was taken out: Manganese, Sand and Gravel, Construction, Stone, Crushed/Broken, Magnesite. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Where SiteCommodity StatusRecorded
Southard RanchMagnesiteProducerMagnesite
Ford Canyon QuarryStone, Crushed/BrokenProducer
Willits QuarryStone, Crushed/BrokenProducer
C A Haun and SonSand and Gravel, ConstructionPast Producer
Longvale PlantSand and Gravel, ConstructionProducer
Longvale PlantSand and Gravel, ConstructionProducer
Willits Ready MixSand and Gravel, ConstructionProducer
Coursey Bros.ManganeseProspect
Coursey Brothers ProspectManganeseProspect1917
Knight ProspectManganeseProspect1942

Every working recorded in Mendocino County

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 PlaceDistance Sheets
Upp0.4 miles16
Willits0.8 miles16
DeCamp1.3 miles16
Muir1.7 miles16
Brooktrails2.2 miles15
Fair Oaks3.0 miles16
Crowley3.8 miles15
Clare Mill3.9 miles15

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.

Wikidata item Q7517691The 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 1653112. 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.