Grass Valley, Montana

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.

• 1912 USGS Missoula quadrangle1:125000, 4 printings
• 1956 USGS Hamilton quadrangle1:250000, 2 printings
• 1959 USGS Hamilton quadrangle1:250000
• 1960 USGS Hamilton quadrangle1:250000
• 1963 USGS Primrose quadrangle1:24000, 2 printings
• 1964 USGS Hamilton quadrangle1:250000
• 1981 USGS Missoula West quadrangle1:100000, 2 printings
• 1999 USGS Primrose quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 234 fires within 5 miles of Grass Valley between 1992 and 2020, burning about 296 acres in total. 27 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:

• De Smet
• Wye
• Ardrum (historical)
• Nagos
• Primrose
• Schilling

Every fire recorded in Missoula County

Regional context, not property-specific evidence. The federal mineral resources record lists 3 workings within 5 miles of Grass Valley: 2 occurrences, 1 unknown. None of them still produces. What was taken out: 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 Missoula 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 784201. 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.