Hanna, Colorado

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.

• 1915 USGS Del Norte quadrangle1:125000
• 1917 USGS Del Norte quadrangle1:125000, 3 printings
• 1945 USGS Durango quadrangle1:250000, 3 printings
• 1953 USGS Durango quadrangle1:250000
• 1954 USGS Durango quadrangle1:250000, 2 printings
• 1961 USGS Durango quadrangle1:250000
• 1963 USGS Durango quadrangle1:250000
• 1966 USGS Durango quadrangle1:250000, 2 printings
• 1966 USGS Indian Head quadrangle1:24000, 3 printings
• 1982 USGS Del Norte quadrangle1:100000
• 2001 USGS Indian Head quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 30 fires within 5 miles of Hanna between 1992 and 2017, burning about 21 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:

• Alpine
• Gerrard
• Baxterville
• Del Norte
• Evansville
• South Fork

Every fire recorded in Rio Grande County

Regional context, not property-specific evidence. The federal mineral resources record lists 9 workings within 5 miles of Hanna: 5 occurrences, 4 unknowns. None of them still produces. What was taken out: Sand and Gravel, Construction, Pumice. 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 Rio Grande 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 190296. 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.