Thornton, 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.

• 1890 USGS Kansas City quadrangle1:125000, 2 printings
• 1894 USGS Kansas City quadrangle1:125000, 14 printings
• 1935 USGS North Kansas City quadrangle1:24000
• 1940 USGS North Kansas City quadrangle1:31680, 2 printings
• 1948 USGS North Kansas City quadrangle1:24000
• 1950 USGS Kansas City quadrangle1:250000
• 1951 USGS North Kansas City quadrangle1:24000, 2 printings
• 1954 USGS Kansas City quadrangle1:250000
• 1956 USGS Kansas City quadrangle1:250000, 4 printings
• 1960 USGS Kansas City quadrangle1:250000, 3 printings
• 1964 USGS North Kansas City quadrangle1:24000, 5 printings
• 1983 USGS Kansas City quadrangle1:100000
• 1990 USGS North Kansas City quadrangle1:24000
• 1997 USGS North Kansas City quadrangle1:24000, 2 printings

An account from the chapter on Gallatin township. The inset identifies its exact source book and publication year.

The county-history sources names this settlement in its chapter on Gallatin Township. These are the passages that mention it, exactly as the scans read.

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 59 fires within 5 miles of Thornton between 2007 and 2018, burning about 39 acres in total. None 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:

• Avondale
• East Kansas City
• Moscow
• Randolph
• North Kansas City
• Harlem

Every fire recorded in Clay County

Regional context, not property-specific evidence. The federal mineral resources record lists 55 workings within 5 miles of Thornton: 44 past producers, 11 producers. 11 still produce. What was taken out: Stone, Crushed/Broken, Sand and Gravel, Construction, Clay, Clay, Stone, Crushed/Broken. 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 Clay 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 759726. 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.