Trovia, Arizona

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.

• 1930 USGS Cave Creek quadrangle1:125000, 2 printings
• 1939 USGS Cave Creek quadrangle1:125000, 3 printings
• 1954 USGS Mesa quadrangle1:250000, 4 printings
• 1957 USGS Mesa quadrangle1:250000
• 1958 USGS Mesa quadrangle1:250000
• 1960 USGS Mesa quadrangle1:250000
• 1964 USGS Mesa quadrangle1:250000
• 1965 USGS Cave Creek quadrangle1:24000, 3 printings
• 1994 USGS Theodore Roosevelt Lake quadrangle1:100000, 3 printings
• 2004 USGS Cave Creek quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 121 fires within 5 miles of Trovia between 1992 and 2020, burning about 1,926 acres in total. 2 started naturally. None 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:

• Desert Wind
• Lone Mountain Ranch
• Parque Vista Estates
• Desert Bell Estates II
• Dove Valley Ranch
• Mountain Vista

Every fire recorded in Maricopa County

Regional context, not property-specific evidence. The federal mineral resources record lists 11 workings within 5 miles of Trovia: 5 past producers, 2 unknowns, 2 prospects, 2 occurrences. None of them still produces. What was taken out: Sand and Gravel, Construction, Gold, Silica, Quartz, Copper, 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 Maricopa 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 2059861. 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.