Sheldon, Ohio

The same ground, surveyed 86 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1900 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.

• 1900 USGS Maumee Bay quadrangle1:62500
• 1900 USGS Maumee Bay quadrangle1:62500
• 1935 USGS Genoa quadrangle1:24000
• 1938 USGS Genoa quadrangle1:31680
• 1938 USGS Genoa quadrangle1:31680
• 1952 USGS Genoa quadrangle1:24000
• 1952 USGS Genoa quadrangle1:24000
• 1956 USGS Toledo quadrangle1:250000
• 1956 USGS Toledo quadrangle1:250000
• 1956 USGS Toledo quadrangle1:250000
• 1956 USGS Toledo quadrangle1:250000
• 1961 USGS Toledo quadrangle1:250000
• 1966 USGS Genoa quadrangle1:24000
• 1966 USGS Genoa quadrangle1:24000
• 1986 USGS Toledo quadrangle1:100000
• 1986 USGS Toledo quadrangle1:100000

Museums hold 1,502 specimens collected within 10 miles of Sheldon (historical) between 1825 and 1975: 1,478 Animalia, 18 Plantae, 5 Fungi, 1 Chromista. 12 distinct Species records are shown. Collected by A. Woolman, Al Szuch, Albiet, P. 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
	Hygroamblystegium tenax (Hedw.) Jenn.	1825	T. Drummond	Banks of the Portage River
	Ambloplites rupestris (Rafinesque, 1817)	1893	Woolman	Tousaint River, Port Clinton, Ohio
	Ameiurus natalis (Lesueur, 1819)	1893	A. Woolman	Ohio, Tousaint River, 10 miles west of Port Clinton
	Ameiurus nebulosus (Lesueur, 1819)	1893	A. Woolman	Ohio, Tousaint River, 10 miles west of Port Clinton
	Graptemys geographica (Lesueur, 1817)	1893	not recorded	Port Clinton, 10 mi W of, Tousaint River
	Lepomis gibbosus (Linnaeus, 1758)	1893	not recorded	Oak Harbor, Ohio
	Lithobates pipiens (Schreber, 1782)	1893	not recorded	Oak Harbor, Portage River
	Micropterus salmoides (Lacepède, 1802)	1893	not recorded	Tousaint River, Port Clinton, Ohio
	Noturus gyrinus (Mitchill, 1817)	1893	A. Woolman	Ohio, Tousaint River, 10 miles west of Port Clinton
	Lepomis macrochirus Rafinesque, 1819	1894	C. Rutter	Portage River, Oak Harbor, Ohio
	Moxostoma erythrurum (Rafinesque, 1818)	1894	C. Rutter	Portage River, Oak Harbor, Ohio
	Notemigonus crysoleucas (Mitchill, 1814)	1894	C. Rutter	Portage River, Oak Harbor, Ohio

All 1,502 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 5 workings within 5 miles of Sheldon (historical): 3 past producers, 2 producers. 2 still produce. What was taken out: Beryllium, Calcium, Stone, Limestone, General. 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 Ottawa 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 1049679. 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.