Opportunity, 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.

• 1889 USGS Helena quadrangle1:250000
• 1893 USGS Helena quadrangle1:250000, 2 printings
• 1899 USGS Helena quadrangle1:250000
• 1903 USGS Helena quadrangle1:250000, 4 printings
• 1947 USGS Butte quadrangle1:250000, 2 printings
• 1958 USGS Butte quadrangle1:250000, 5 printings
• 1960 USGS Butte quadrangle1:250000
• 1961 USGS Anaconda quadrangle1:62500
• 1962 USGS Butte quadrangle1:250000
• 1989 USGS Opportunity quadrangle1:24000
• 1994 USGS Butte North quadrangle1:100000
• 1996 USGS Opportunity quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 17 fires within 5 miles of Opportunity between 1992 and 2018, burning about 52 acres in total. 5 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:

• Crackerville
• Stuart
• Mill Creek
• Mine Creek
• Staton
• Anaconda

Every fire recorded in Deer Lodge County

Regional context, not property-specific evidence. The federal mineral resources record lists 13 workings within 5 miles of Opportunity: 6 occurrences, 4 producers, 1 unknown, 1 plant. 5 still produce. What was taken out: Pumice, Fluorine-Fluorite, Geothermal, Iron. 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 Deer Lodge County

Regional context, not property-specific evidence. The National Weather Service names Opportunity in 1 storm report in 1997: 1 tornado. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

Every storm recorded in Deer Lodge County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

This settlement is recorded in the Geographic Names Information System as feature 788474. 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.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.