Thornton, Ohio

The same ground, surveyed 69 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1917 1986

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.

• 1917 USGS Greenfield quadrangle1:62500
• 1917 USGS Greenfield quadrangle1:62500
• 1944 USGS Greenfield quadrangle1:62500
• 1947 USGS Columbus quadrangle1:250000
• 1960 USGS Good Hope quadrangle1:24000
• 1960 USGS Good Hope quadrangle1:24000
• 1961 USGS Columbus quadrangle1:250000
• 1962 USGS Columbus quadrangle1:250000
• 1967 USGS Columbus quadrangle1:250000
• 1967 USGS Columbus quadrangle1:250000
• 1986 USGS Hillsboro quadrangle1:100000
• 1986 USGS Hillsboro quadrangle1:100000

The federal wildfire occurrence database lists 2 fires within 5 miles of Thornton (historical) between 2007 and 2020, burning about 3 acres in total. None started naturally. None was 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:

• Fruitdale
• Harper
• Lyndon
• New Salem (historical)
• South Salem
• Thrifton

Every fire recorded in Ross County

Museums hold 265 specimens collected within 10 miles of Thornton (historical) between 1898 and 1975: 242 Animalia, 18 Plantae, 5 Fungi. 12 distinct Species records are shown. Collected by Barnes, M. (Mark) & Cloggett, L., Bowen, C. A. (Charles A.), Cavender, T. (Ted), Horvath, F. & Smith, C. (Cass) and others. Each is a physical object with a catalogue number, and each entry opens the museum's record. This is what was collected and kept, not a survey of what lives here - nothing can be concluded from a species being absent.

Image	Species	Year	Collected by	Where, as recorded
	Heterosternuta wickhami (Zaitzev, 1908)	1898	Scott O'Dee
	Fungus Adanson ex O.Kuntze, 1898	1908	E. T. Harper & S. A. Harper
	Andropogon gerardi Vitman	1910	Hopkins, L.S.	Paint Creek
	Brachyelytrum erectum (Schreb.) P.Beauv.	1910	Hopkins, L.S.	Paint Creek
	Cardamine pensylvanica Muhl. ex Willd.	1910	Hopkins, L.S.	Paint Creek
	Cinna arundinacea L.	1910	Hopkins, L.S.	Panel Creek
	Diarrhena americana P.Beauv.	1910	Hopkins, L.S.	Point Creek
	Digitaria sanguinalis (L.) Scop.	1910	Hopkins, L.S.	Paint Creek
	Dryopteris marginalis (L.) A.Gray	1910	Hopkins, L.S.	Paint Creek, in Paint Creek Gorge
	Echinochloa muricata var. microstachya Wiegand	1910	Hopkins, L.S.	Paint Creek
	Hypericum mutilum L.	1910	Hojkins, S.S.	Paint Creek
	Lobelia kalmii L.	1910	Hopkins, L.S.	Paint Creek Gorge

All 265 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 2 workings within 5 miles of Thornton (historical): 1 past producer, 1 plant. 1 still produces. What was taken out: Limestone, General, 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 Ross 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 1049994. 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.

Specimens. Global Biodiversity Information Facility (GBIF), https://www.gbif.org/. Only records licensed CC0 or CC BY are used. Records licensed CC BY-NC are excluded because this site carries advertising. Images are checked individually and any whose licence is non-commercial, no-derivatives or unreadable is refused.

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.