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Island Mountain, California

19 topographic sheets cover this place, the earliest surveyed in 1921 and the latest in 1997. It stands in the Mad River census division. It lies in ZIP code area 95595. It stands on Tunnel Creek. The Survey maps it on the Lake Mountain quadrangle.

Island Mountain within Trinity County

Then and now

1921 to 1997

The same ground, surveyed 76 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Island Mountain, surveyed 1997
Topographic sheet of Island Mountain, surveyed 1921

Compare 1921 against another survey:

Topographic sheets covering this place

10 surveys from 19 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

19 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 19 fires within 5 miles of Island Mountain between 1992 and 2018, burning about 177 acres in total. 8 started naturally. None 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
Natural8
Equipment and vehicle use5
Missing data/not specified/undetermined4
Debris and open burning1
Recreation and ceremony1

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
3 September 2003Naturalunder an acreHumboldt-Del Norte UnitLONE PINE
3 September 2003Naturalunder an acreHumboldt-Del Norte UnitHORSE RANCH
22 September 2015Missing data/not specified/undeterminedunder an acreHumboldt-Del Norte UnitISLAND
31 August 2001Equipment and vehicle use32 acresHumboldt-Del Norte UnitISLAND
26 August 2011Equipment and vehicle use2.7 acresHumboldt-Del Norte UnitWOOD
25 July 1992Missing data/not specified/undetermined2.0 acresHumboldt-Del Norte UnitWINTER
23 June 2018Equipment and vehicle use3.0 acresCalifornia Department of Forestry & Fire ProtectionISLAND
22 June 2008Natural78 acresHumboldt-Del Norte UnitLONE PINE

Settlements close enough to share some of these fires:

Every fire recorded in Trinity County

Mines and quarries near this place

4 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 4 workings within 5 miles of Island Mountain: 3 past producers, 1 unknown. None of them still produces. What was taken out: Copper, Silver, Gold, Iron, Stone. 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
Island MountainCopper, Gold, SilverPast Producer1942
Island Mountain ConsolidatedCopper, Silver, Gold, IronPast ProducerReplacement
Northwestern Pacific Railroad CoStoneUnknown
Island Mountain ConsolidatedCopperPast Producer

Every working recorded in Trinity 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
Kekawaka5.0 miles14
Nielson Place7.8 miles17
Robbers Roost8.4 miles18
Kettenpom9.2 miles18
Bob Hoaglin Place9.8 miles17
Willie Hoaglin Place10.2 miles17
Shannon Place11.2 miles17
Crabtree Place11.5 miles17

Provenance

This settlement is recorded in the Geographic Names Information System as feature 1658842. 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.