Clarks, Ohio

The same ground, surveyed 90 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1904 1994

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.

• 1904 USGS Chardon quadrangle1:62500
• 1906 USGS Chardon quadrangle1:62500
• 1906 USGS Chardon quadrangle1:62500
• 1953 USGS Chardon quadrangle1:24000
• 1953 USGS Chardon quadrangle1:24000
• 1956 USGS Cleveland quadrangle1:250000
• 1956 USGS Cleveland quadrangle1:250000
• 1956 USGS Cleveland quadrangle1:250000
• 1962 USGS Cleveland quadrangle1:250000
• 1966 USGS Chardon quadrangle1:24000
• 1966 USGS Chardon quadrangle1:24000
• 1966 USGS Chardon quadrangle1:24000
• 1985 USGS Cleveland North quadrangle1:100000
• 1994 USGS Chardon quadrangle1:24000
• 1994 USGS Cleveland North quadrangle1:100000

The county history of 1880 has no passage naming this settlement, which was common for the smaller places. Its township is covered in full.

Museums hold 2,883 specimens collected within 10 miles of Clarks between 1887 and 1975: 2,770 Animalia, 98 Plantae, 13 Fungi, 1 Chromista, 1 Unrecorded. 12 distinct Species records are shown. Collected by A. F. Clewell, A.E. Daugherty, Aldritch, J W 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
	Riparia riparia riparia (Linnaeus, 1758)	1891	Fred Haggart
	Medeola virginiana L.	1895	Watson,J.R. s.n. [1895-06-30]	[label: Herbarium of J.R. Watson, Berea, O.] Geauga Co. [County]
	Scapania undulata (L.) Dumort.	1896	Edo N. Claassen	Thompson Ledges
	Asplenium trichomanes L.	1887	Leonard, F.E.	Little Mountain.
	Dryopteris marginalis (L.) A.Gray	1887	Leonard, F.E.	Munson
	Melospiza georgiana (Latham, 1790)	1889	Collector(s): F. S. Haggart	No specific locality recorded.
	Cypripedium reginae Walter	1896	J. R. Watson	Geauga
	Stachys cordata Riddell	1896	Guttenberg, G.	Burton
	Accipiter cooperii (Bonaparte, 1828)	1897	Ray Densmore	Leroy
	Butorides virescens virescens (Linnaeus, 1758)	1897	Ray Densmore	Leroy, Grand River, swamp
	Conocephalum conicum (L.) Underw.	1897	Jesse M. Greenman	Little Mountain
	Conopholis americana (L.) Wallr.	1897	Ashcroft	Mentor

All 2,883 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 3 workings within 5 miles of Clarks: 1 past producer, 1 plant, 1 producer. 2 still produce. What was taken out: 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 Geauga 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 1062550. 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.

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.