Mammoth Ledge, Nevada

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.

• 1889 USGS Markleeville quadrangle1:125000
• 1891 USGS Markleeville quadrangle1:125000
• 1893 USGS Markleeville quadrangle1:125000, 9 printings
• 1948 USGS Walker Lake quadrangle1:250000, 2 printings
• 1957 USGS Mt. Siegel quadrangle1:62500, 3 printings
• 1957 USGS Walker Lake quadrangle1:250000, 4 printings
• 1962 USGS Walker Lake quadrangle1:250000
• 1964 USGS Walker Lake quadrangle1:250000, 2 printings
• 1985 USGS Smith Valley quadrangle1:100000, 2 printings
• 1986 USGS Double Spring quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 96 fires within 5 miles of Mammoth Ledge (historical) between 1992 and 2020, burning about 32,017 acres in total. 56 started naturally. 3 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:

• Double Springs (historical)
• Buckeye
• Carman Heights
• Dresslerville
• Twelvemile House

Every fire recorded in Douglas County

Regional context, not property-specific evidence. The federal mineral resources record lists 37 workings within 5 miles of Mammoth Ledge (historical): 20 past producers, 10 occurrences, 3 producers, 3 prospects. 3 still produce. What was taken out: Gold, Tungsten, Sand and Gravel, Construction, Silver. 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 Douglas 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 858463. 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.