Ayers, 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.

• 1892 USGS Savanna quadrangle1:62500, 8 printings
• 1952 USGS Savanna quadrangle1:62500, 3 printings
• 1959 USGS Dubuque quadrangle1:250000
• 1961 USGS Dubuque quadrangle1:250000
• 1962 USGS Dubuque quadrangle1:250000, 2 printings
• 1976 USGS Dubuque quadrangle1:250000
• 1984 USGS Dubuque South quadrangle1:100000, 4 printings
• 1985 USGS Wacker quadrangle1:24000

The History of Carroll County, Illinois, Containing a History of the County-its Cities, Towns, Etc., a Biographical Directory ... War Record ... Statistics, Portraits of Early Settlers and Prominent Men ... History of the Northwest ... Illinois ... Miscellaneous Matters, Etc, published 1878 has no passage naming this settlement, which was common for smaller places. Its township is covered in full.

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 13 fires within 5 miles of Ayers between 1992 and 2019, burning about 45 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:

• Hickory Grove
• Savanna
• Wacker
• Burke
• Center Hill
• Thomson

Every fire recorded in Carroll County

Regional context, not property-specific evidence. The federal mineral resources record lists 15 workings within 5 miles of Ayers: 8 past producers, 5 producers, 2 occurrences. 5 still produce. What was taken out: Stone, Crushed/Broken, Sand and Gravel, Construction, Limestone, General. 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 Carroll 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 422426. 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.