Mason, Illinois

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.

• 1924 USGS Alto Pass quadrangle1:62500, 2 printings
• 1947 USGS Alto Pass quadrangle1:62500, 2 printings
• 1947 USGS Cobden quadrangle1:24000, 3 printings
• 1948 USGS Cobden quadrangle1:24000, 2 printings
• 1949 USGS Alto Pass quadrangle1:62500
• 1949 USGS Paducah quadrangle1:250000, 2 printings
• 1950 USGS Paducah quadrangle1:250000
• 1954 USGS Paducah quadrangle1:250000, 2 printings
• 1961 USGS Paducah quadrangle1:250000, 2 printings
• 1964 USGS Paducah quadrangle1:250000, 2 printings
• 1984 USGS Carbondale quadrangle1:100000
• 1986 USGS Carbondale quadrangle1:100000
• 1987 USGS Paducah quadrangle1:250000
• 1996 USGS Cobden quadrangle1:24000

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 12 fires within 5 miles of Mason between 1994 and 2020, burning about 65 acres in total. None started naturally. 2 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:

• Cobden
• Mountain Glen
• Alto Pass
• Kaolin
• Anna
• Balcom

Every fire recorded in Union County

Regional context, not property-specific evidence. The federal mineral resources record lists 13 workings within 5 miles of Mason: 7 occurrences, 3 past producers, 3 prospects. None of them still produces. What was taken out: Stone, Crushed/Broken, Fluorine-Fluorite, Limestone, Dimension, Fire Clay (Refractory). 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 Union 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 1821304. 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.