Harden Flat, California

The same ground, surveyed 104 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1897 2001

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.

• 1897 USGS Yosemite quadrangle1:125000
• 1900 USGS Yosemite quadrangle1:125000
• 1903 USGS Yosemite quadrangle1:125000, 2 printings
• 1909 USGS Yosemite quadrangle1:125000, 7 printings
• 1947 USGS Mariposa quadrangle1:250000, 2 printings
• 1948 USGS Mariposa quadrangle1:250000
• 1956 USGS Lake Eleanor quadrangle1:62500, 3 printings
• 1957 USGS Mariposa quadrangle1:250000, 4 printings
• 1963 USGS Mariposa quadrangle1:250000
• 1976 USGS Yosemite Valley quadrangle1:100000, 2 printings
• 1990 USGS Ascension Mountain quadrangle1:24000
• 1992 USGS Ascension Mountain quadrangle1:24000
• 2001 USGS Ascension Mountain quadrangle1:24000, 2 printings

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 110 fires within 5 miles of Harden Flat between 1992 and 2020, burning about 6,072 acres in total. 36 started naturally. 18 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:

• Sequoia
• Colfax Spring
• Aspen Valley
• Buchanan
• Deadwood
• Mather

Every fire recorded in Tuolumne County

Regional context, not property-specific evidence. The federal mineral resources record lists 14 workings within 5 miles of Harden Flat: 5 occurrences, 4 unknowns, 3 past producers, 2 prospects. None of them still produces. What was taken out: Gold, Silver, Lead, Silver, Lead. 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 Tuolumne County

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

This settlement is recorded in the Geographic Names Information System as feature 261084. 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.