Rio, 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 Manti quadrangle1:250000, 4 printings
• 1895 USGS Manti quadrangle1:250000
• 1956 USGS Price quadrangle1:250000, 3 printings
• 1960 USGS Price quadrangle1:250000, 2 printings
• 1962 USGS Price quadrangle1:250000
• 1967 USGS Thistle quadrangle1:24000, 2 printings
• 1981 USGS Nephi quadrangle1:100000, 3 printings
• 2001 USGS Thistle quadrangle1:24000

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 126 fires within 5 miles of Rio between 1992 and 2020, burning about 34,425 acres in total. 62 started naturally. 4 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:

• Thistle
• Mill Fork
• Castilla
• Covered Bridge Canyon
• Patrick Place

Every fire recorded in Utah County

Regional context, not property-specific evidence. The federal mineral resources record lists 11 workings within 5 miles of Rio: 7 past producers, 4 producers. 4 still produce. 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 Utah 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 1444990. 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.