Achi, 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.

• 1953 USGS Ajo quadrangle1:250000, 2 printings
• 1957 USGS Ajo quadrangle1:250000
• 1958 USGS Ajo quadrangle1:250000, 2 printings
• 1962 USGS Ajo quadrangle1:250000
• 1963 USGS Ajo quadrangle1:250000
• 1963 USGS Gu Achi quadrangle1:62500, 2 printings
• 1967 USGS Ajo quadrangle1:250000
• 1980 USGS Ajo quadrangle1:100000
• 1982 USGS Ajo quadrangle1:250000
• 1990 USGS Santa Rosa quadrangle1:24000
• 1996 USGS Santa Rosa quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 28 fires within 5 miles of Achi between 1993 and 2009, burning about 416 acres in total. 1 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:

• Palo Verde Stand
• Santa Rosa
• Ali Oidak
• Anegam
• Ak Chin
• Makgum Havoka

Every fire recorded in Pima County

Regional context, not property-specific evidence. The federal mineral resources record lists 7 workings within 5 miles of Achi: 7 occurrences. None of them still produces. What was taken out: Tungsten, Uranium, Geothermal, Copper, Zinc. 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 24292. 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.