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Forest Knolls, California

23 topographic sheets cover this place, the earliest surveyed in 1914 and the latest in 1983. It stands in the Northwest Marin census division. It lies in ZIP code area 94933. It stands on San Geronimo Creek. The Survey maps it on the San Geronimo quadrangle. It stands 249 feet above sea level.

Forest Knolls within Marin County

Then and now

1914 to 1983

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 Forest Knolls, surveyed 1983
Topographic sheet of Forest Knolls, surveyed 1914

On record in Forest Knolls

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.

Topographic sheets covering this place

10 surveys from 23 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

35 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 35 fires within 5 miles of Forest Knolls between 1992 and 2020, burning about 331 acres in total. 3 started naturally. 1 was 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
Power generation/transmission/distribution10
Missing data/not specified/undetermined8
Equipment and vehicle use7
Natural3
Recreation and ceremony2
Fireworks2
Arson/incendiarism1
Misuse of fire by a minor1
Debris and open burning1

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
8 September 2004Arson/incendiarismunder an acrePoint Reyes National SeashoreRANDALL
18 September 2002Power generation/transmission/distributionunder an acrePoint Reyes National SeashoreTEIXERA
10 September 2018Equipment and vehicle use151 acresCalifornia Department of Forestry & Fire Protectionnot named
9 August 2012Misuse of fire by a minorunder an acreMarin County Fire Departmentnot named
9 August 2002Equipment and vehicle useunder an acreGolden Gate National Recreation AreaWHITEGATE
9 August 1992Fireworks2.2 acresGolden Gate National Recreation AreaOLEMA I
9 August 1992Fireworks4.6 acresGolden Gate National Recreation AreaOLEMA II
28 August 2007Missing data/not specified/undetermined6.0 acresMarin County Fire Departmentnot named

Settlements close enough to share some of these fires:

Every fire recorded in Marin County

Mines and quarries near this place

10 of 20 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 20 workings within 5 miles of Forest Knolls: 16 occurrences, 1 past producer, 1 unknown, 1 prospect. 1 still produces. What was taken out: Copper, Stone, Crushed/Broken, Gold, Gold, Silver. 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
Fort BakerManganese, GoldOccurrencePsilomelane
Maillard RanchChromiumOccurrence
McKinnan GulchCopper, LeadOccurrenceVein
Mount Tamalpais Cemetery Quarry.Stone, Stone, Dimension, Stone, Crushed/BrokenOccurrence
Union GulchCopper, Silver, GoldPast Producer1863
Unnamed LocationGemstoneOccurrence
ClaimsMercuryOccurrence
ClaimsMercuryOccurrence
Maillard RanchManganeseOccurrence
Maillard RanchManganeseOccurrence

Every working recorded in Marin 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
Lagunitas0.8 miles23
Shafter1.3 miles23
San Geronimo1.3 miles23
Irving (historical)1.9 miles23
Woodacre2.3 miles23
Taylorville (historical)2.9 miles23
Mailliard (historical)2.9 miles23
Nicasio3.2 miles23

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 Forest KnollsAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q5468996The 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 223678. 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.