BlockBefore

Dinsmore, California

13 topographic sheets cover this place, the earliest surveyed in 1949 and the latest in 1997. It stands in the Fortuna census division. It lies in ZIP code area 95526. It stands on Mill Creek. The Survey maps it on the Dinsmore quadrangle. It stands 2,415 feet above sea level.

Dinsmore within Humboldt County

Then and now

1949 to 1997

The same ground, surveyed 48 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Dinsmore, surveyed 1997
Topographic sheet of Dinsmore, surveyed 1949

Compare 1949 against another survey:

Topographic sheets covering this place

6 surveys from 13 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

57 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 57 fires within 5 miles of Dinsmore between 1992 and 2020, burning about 2,157 acres in total. 8 started naturally. 7 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/undetermined22
Debris and open burning9
Natural8
Equipment and vehicle use8
Arson/incendiarism7
Other causes2
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
9 September 1993Missing data/not specified/undeterminedunder an acreSix Rivers National Forestnot named
3 September 2003Natural2.5 acresSix Rivers National ForestRABBIT
3 September 1996Arson/incendiarismunder an acreHumboldt-Del Norte UnitLARABEE
28 September 2007Equipment and vehicle use1.4 acresHumboldt-Del Norte UnitHIDDEN
25 September 1999Equipment and vehicle use96 acresHumboldt-Del Norte UnitLARABEE
21 September 1992Arson/incendiarismunder an acreSix Rivers National Forestnot named
19 September 2003Missing data/not specified/undeterminedunder an acreSix Rivers National ForestBUCK
18 September 1994Missing data/not specified/undeterminedunder an acreHumboldt-Del Norte UnitCHRISTEN

Settlements close enough to share some of these fires:

Every fire recorded in Humboldt 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 Dinsmore: 2 producers, 1 occurrence, 1 unknown. 2 still produce. What was taken out: Chromium, Sand and Gravel, Construction. 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
BlocksburgSand and Gravel, ConstructionProducer
Dinsmore PitSand and Gravel, ConstructionProducer
UnknownChromiumOccurrenceChromite
Unnamed LocationChromiumUnknown

Every working recorded in Humboldt County

Storms near this place

3 since 2025

Regional context, not property-specific evidence. The National Weather Service names Dinsmore in 3 storm reports in 2025: 1 heavy rain, 1 flood, 1 thunderstorm wind. 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.

WhenEvent Place namedHarm What the report says
February 2025Heavy RainDinsmore$1,100Rock slide is blocking the east bound lane of HWY 36.|Lat. 40.49N, Long. -123.63W.
November 2025Thunderstorm WindDinsmore$500Greenhouse torn completely apart and large branches down near Dinsmore.
December 2025FloodDinsmore-Flooding over Highway 36 southeast of Dinsmore resulted in a full closure of the road.

Every storm recorded in Humboldt 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
Bridgeville10.3 miles12
Maple Grove12.1 miles12
Yager Junction12.2 miles12
Tanoak (historical)14.8 miles11
Blocksburg15.0 miles12
Smith (historical)15.1 miles11
Eel Rock15.5 miles12
Whitlow15.8 miles11

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 DinsmoreAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q5278721The 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 259385. 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.