Letcher, California

The same ground, surveyed 59 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1923 1982

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.

• 1923 USGS Academy quadrangle1:31680
• 1946 USGS Academy quadrangle1:24000
• 1946 USGS Clovis quadrangle1:62500
• 1947 USGS Academy quadrangle1:24000, 2 printings
• 1948 USGS Fresno quadrangle1:250000
• 1955 USGS Fresno quadrangle1:250000
• 1956 USGS Fresno quadrangle1:250000
• 1958 USGS Fresno quadrangle1:250000
• 1960 USGS Fresno quadrangle1:250000, 2 printings
• 1962 USGS Fresno quadrangle1:250000, 3 printings
• 1964 USGS Academy quadrangle1:24000, 4 printings
• 1966 USGS Fresno quadrangle1:250000
• 1982 USGS Fresno quadrangle1:100000, 2 printings

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 172 fires within 5 miles of Letcher (historical) between 1992 and 2019, burning about 1,945 acres in total. 7 started naturally. 11 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.

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

Settlements close enough to share some of these fires:

• Sentinel (historical)
• Sparkville (historical)
• Collins (historical)
• Marshall Junction
• McKenzie Spring (historical)

Every fire recorded in Fresno County

Regional context, not property-specific evidence. The federal mineral resources record lists 19 workings within 5 miles of Letcher (historical): 8 unknowns, 6 occurrences, 4 past producers, 1 producer. 1 still produces. What was taken out: Copper, Gold, Beryllium, Stone, Crushed/Broken. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Fresno County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

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.

This settlement is recorded in the Geographic Names Information System as feature 1665632. 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.