Arrowhead, 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.

• 1906 USGS Fort Collins quadrangle1:62500, 4 printings
• 1907 USGS Livermore quadrangle1:125000, 2 printings
• 1908 USGS Fort Collins quadrangle1:62500, 4 printings
• 1909 USGS Livermore quadrangle1:125000, 4 printings
• 1954 USGS Greeley quadrangle1:250000, 3 printings
• 1957 USGS Greeley quadrangle1:250000
• 1958 USGS Greeley quadrangle1:250000
• 1960 USGS Fort Collins quadrangle1:24000, 6 printings
• 1961 USGS Greeley quadrangle1:250000
• 1964 USGS Greeley quadrangle1:250000
• 1965 USGS Greeley quadrangle1:250000
• 1980 USGS Fort Collins quadrangle1:100000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 456 fires within 5 miles of Arrowhead between 2003 and 2019, burning about 861 acres in total. 6 started naturally. 3 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:

• Black Hollow Junction
• Harmony
• Sinnard
• Andersonville
• Buckingham
• Drakes

Every fire recorded in Larimer County

Regional context, not property-specific evidence. The federal mineral resources record lists 17 workings within 5 miles of Arrowhead: 14 producers, 2 occurrences, 1 past producer. 14 still produce. What was taken out: Sand and Gravel, Construction, Stone, Crushed/Broken, Gypsum-Anhydrite, Graphite. 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 Larimer 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 177435. 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.