Clarksville, Ohio

The same ground, surveyed 95 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1907 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.

• 1907 USGS Logan quadrangle1:62500
• 1907 USGS Logan quadrangle1:62500
• 1909 USGS Logan quadrangle1:62500
• 1947 USGS Columbus quadrangle1:250000
• 1961 USGS Columbus quadrangle1:250000
• 1961 USGS Junction City quadrangle1:24000
• 1961 USGS Junction City quadrangle1:24000
• 1961 USGS Junction City quadrangle1:24000
• 1962 USGS Columbus quadrangle1:250000
• 1967 USGS Columbus quadrangle1:250000
• 1967 USGS Columbus quadrangle1:250000
• 1984 USGS Lancaster quadrangle1:100000
• 2002 USGS Junction City quadrangle1:24000

1883 History Perry County, Ohio, published 1883 names this settlement in its chapter on Jackson 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 29 fires within 5 miles of Clarksville between 2015 and 2020, burning about 32 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:

• Junction City
• Mainsville
• Crossenville
• Asbury (historical)
• Bristol
• Carthon

Every fire recorded in Perry County

Regional context, not property-specific evidence. Museums hold 225 specimens collected within 10 miles of Clarksville between 1891 and 1975: 163 Animalia, 35 Plantae, 20 Fungi, 5 Protozoa, 2 Unrecorded. 12 distinct Species records are shown. Collected by Bergstrom, J., Black R. J., Buchanan, J. 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
	Uromyces junci-effusi P.Syd. & Syd.	1910	W. A. Kellerman
	Equisetum arvense L.	1937	Sharps, M.E.	Rush Creek Twp.
	Holwaya gigantea (Peck) E.J.Durand	1891	W. A. Kellerman	[Specific locality illegible.]
	Porella platyphylla (L.) Pfeiff.	1891	W. C. Werner
	Puccinia schedonnardi Kellerm. & Swingle	1895	W. A. Kellerman
	Uromyces junci Tul.	1901	W. A. Kellerman	Junction City
	Natrix kirtlandii (Kennicott, 1856)	1902	Dilto, C. R.	Perry Co., Ohio
	Puccinia muhlenbergiae Arthur & Holw.	1902	W. A. Kellerman & J. McOwen Jr.
	Podosphaera oxyacanthae (DC.) de Bary	1903	Black R. J.	Bremen
	Endothia fluens (Sowerby) Shear & N.E.Stevens	1912	Nixon E. L.	Perry Co.
	Coleosporium carneum (Bosc) H.S.Jacks.	1915	G.G. Hedgcock	Gainesville
	Telmatodytes palustris (A.Wilson, 1810)	1926	Franks, R. W. (Roscoe W.)	Honey Creek, Buckeye Lake, Perry, Ohio, USA

All 225 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 6 workings within 5 miles of Clarksville: 5 past producers, 1 producer. 1 still produces. What was taken out: Clay, Clay, Coal. 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 Perry 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 1075580. 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.