Upalco, Utah

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.

• 1885 USGS Uinta quadrangle1:250000, 6 printings
• 1939 USGS Duchesne quadrangle1:125000, 3 printings
• 1954 USGS Salt Lake City quadrangle1:250000, 4 printings
• 1958 USGS Salt Lake City quadrangle1:250000
• 1960 USGS Salt Lake City quadrangle1:250000
• 1965 USGS Bluebell quadrangle1:24000
• 1982 USGS Duchesne quadrangle1:100000

Taken for the Office of War Information and the Farm Security Administration, who photographed the country between 1935 and 1944. Works of United States government photographers, with no known restriction on use. Each opens its catalogue record.

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 32 fires within 5 miles of Upalco between 1992 and 2020, burning about 182 acres in total. 5 started naturally. 1 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.

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:

• Arcadia
• Ioka
• Altamont
• Bluebell
• Mount Emmons

Every fire recorded in Duchesne County

Regional context, not property-specific evidence. The federal mineral resources record lists 8 workings within 5 miles of Upalco: 8 past producers. None of them still produces. What was taken out: 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.

Every working recorded in Duchesne 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 1433790. 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.