Dobson, 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.

• 1934 USGS Tucson Mountains quadrangle1:125000
• 1956 USGS Tucson quadrangle1:250000, 3 printings
• 1958 USGS Tucson quadrangle1:250000
• 1959 USGS Silver Bell Peak quadrangle1:62500, 3 printings
• 1959 USGS Tucson quadrangle1:250000, 2 printings
• 1962 USGS Tucson quadrangle1:250000
• 1964 USGS Tucson quadrangle1:250000
• 1989 USGS West of Marana quadrangle1:24000
• 1994 USGS Silver Bell Mountains quadrangle1:100000, 2 printings
• 1996 USGS West of Marana quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 159 fires within 5 miles of Dobson between 1992 and 2020, burning about 1,067 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:

• Avra Valley
• Naviska
• Nelson
• Marana

Every fire recorded in Pima County

Regional context, not property-specific evidence. The federal mineral resources record lists 10 workings within 5 miles of Dobson: 6 occurrences, 4 past producers. None of them still produces. What was taken out: Geothermal, 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 Pima 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 24401. 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.