Derby, Missouri

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.

• 1905 USGS Bonne Terre quadrangle1:62500, 2 printings
• 1905 USGS Bonneterre quadrangle1:62500
• 1949 USGS Rolla quadrangle1:250000
• 1953 USGS Rolla quadrangle1:250000
• 1954 USGS Rolla quadrangle1:250000, 2 printings
• 1958 USGS Bonne Terre quadrangle1:62500, 2 printings
• 1958 USGS Flat River quadrangle1:24000, 4 printings
• 1958 USGS Rolla quadrangle1:250000
• 1959 USGS Rolla quadrangle1:250000
• 1960 USGS Rolla quadrangle1:250000
• 1966 USGS Rolla quadrangle1:250000
• 1971 USGS Rolla quadrangle1:250000
• 1986 USGS Farmington quadrangle1:100000
• 1987 USGS Farmington quadrangle1:100000
• 1989 USGS Rolla quadrangle1:250000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 21 fires within 5 miles of Derby between 1992 and 2020, burning about 410 acres in total. 1 started naturally. 4 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:

• Desloge
• East Flat River
• Elvins
• Esther
• Fairview Acres
• Federal

Every fire recorded in St. Francois County

Regional context, not property-specific evidence. The federal mineral resources record lists 78 workings within 5 miles of Derby: 72 past producers, 6 producers. 6 still produce. What was taken out: Lead, Stone, Crushed/Broken, Copper, 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 St. Francois 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 755985. 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.