Derby, Oregon

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.

• 1891 USGS Ashland quadrangle1:250000
• 1893 USGS Ashland quadrangle1:250000, 6 printings
• 1897 USGS Ashland quadrangle1:250000
• 1954 USGS Butte Falls quadrangle1:62500, 3 printings
• 1955 USGS Medford quadrangle1:250000, 3 printings
• 1957 USGS Medford quadrangle1:250000
• 1958 USGS Medford quadrangle1:250000
• 1988 USGS Obenchain Mtn quadrangle1:24000
• 1989 USGS Crater Lake quadrangle1:100000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 148 fires within 5 miles of Derby (historical) between 1992 and 2020, burning about 1,016 acres in total. 74 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:

• Edsalla (historical)
• Etna (historical)
• McLeod
• Shady Cove
• Brownsboro
• Mountain View (historical)

Every fire recorded in Jackson County

Regional context, not property-specific evidence. The federal mineral resources record lists 13 workings within 5 miles of Derby (historical): 6 occurrences, 4 past producers, 3 prospects. None of them still produces. What was taken out: Beryllium, Sand and Gravel, Construction, Manganese, Mercury. 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 Jackson 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 1132697. 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.