Tropic, Ohio

The same ground, surveyed 91 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1911 2002

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.

• 1911 USGS New Lexington quadrangle1:62500, 2 printings
• 1947 USGS Columbus quadrangle1:250000
• 1961 USGS Columbus quadrangle1:250000
• 1961 USGS Deavertown quadrangle1:24000, 6 printings
• 1962 USGS Columbus quadrangle1:250000
• 1967 USGS Columbus quadrangle1:250000, 2 printings
• 1984 USGS Lancaster quadrangle1:100000
• 2002 USGS Deavertown quadrangle1:24000

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

History of Morgan County, Ohio, with Portraits and Biographical Sketches of Some of Its Pioneers and Prominent Men, published 1886; History of Morgan County, Ohio, published 1886 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 38 fires within 5 miles of Tropic between 2013 and 2020, burning about 142 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:

• Deavertown
• Chesterhill
• Hooksburg
• Lovell
• Malta
• McConnelsville

Every fire recorded in Morgan County

Regional context, not property-specific evidence. Museums hold 49 specimens collected within 10 miles of Tropic between 1896 and 1965: 43 Animalia, 5 Plantae, 1 Fungi. 12 distinct Species records are shown. Collected by Coker W. C., Dennis, D. M., Kraig K. Adler 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
	Cercis canadensis L.	1961	William G. Gambill Jr.; Robert Gray; Charles O. Wingo Jr.	Route 37, 3 miles east of Portersville.
	Gleditsia triacanthos L.	1961	William G. Gambill Jr.	Route 37, 3 miles east of Portersville.
	Medicago lupulina L.	1961	William G. Gambill Jr.; Robert Gray; Charles O. Wingo Jr.	Route 37, 3 miles east of Portersville.
	Leskea obscura Hedw.	1896	W. A. Kellerman
	Merulius corium (Pers.) Fr.	1908	Coker W. C.	Chapel Hill
	Ambystoma Tschudi, 1838	1927	Trautman, M. B. (Milton Bernard)	E. Br. of Sunday Cr., 10 mi NE of Glouster, Athens Co., Ohio
	Notophthalmus viridescens viridescens (Rafinesque, 1820)	1927	Trautman, M. B. (Milton Bernard) & Hine, J. S. (James Stewart)	County line, Near Portersville, Perry Co., Ohio
	Campostoma anomalum anomalum	1929	Trautman, M. B. (Milton Bernard) & Foster, R. (Robert)	West Branch Wolf Creek, within central Deerfield township, near Eagleport, Deerfield township
	Ericymba buccata Cope, 1865	1929	Trautman, M. B. (Milton Bernard) & Foster, R. (Robert)	West Branch Wolf Creek, within central Deerfield township, near Eagleport, Deerfield township
	Micropterus dolomieu dolomieu Lacepède, 1802	1929	Trautman, M. B. (Milton Bernard) & Foster, R. (Robert)	West Branch Wolf Creek, within central Deerfield township, near Eagleport, Deerfield township
	Notropis umbratilis (Girard, 1856)	1929	Trautman, M. B. (Milton Bernard) & Foster, R. (Robert)	West Branch Wolf Creek, within central Deerfield township, near Eagleport, Deerfield township
	Semotilus atromaculatus atromaculatus (Mitchill, 1818)	1929	Trautman, M. B. (Milton Bernard) & Foster, R. (Robert)	West Branch Wolf Creek, within central Deerfield township, near Eagleport, Deerfield township

All 49 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 3 workings within 5 miles of Tropic: 2 past producers, 1 producer. 1 still produces. What was taken out: Clay. 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 Morgan 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 1077074. 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.