County Line, Ohio

The same ground, surveyed 81 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1905 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.

• 1905 USGS Brookville quadrangle1:62500
• 1953 USGS Cincinnati quadrangle1:250000
• 1953 USGS Cincinnati quadrangle1:250000
• 1953 USGS Cincinnati quadrangle1:250000
• 1955 USGS West Milton quadrangle1:24000
• 1955 USGS West Milton quadrangle1:24000
• 1955 USGS West Milton quadrangle1:24000
• 1955 USGS West Milton quadrangle1:24000
• 1955 USGS West Milton quadrangle1:24000
• 1957 USGS Cincinnati quadrangle1:250000
• 1986 USGS Dayton quadrangle1:100000
• 1986 USGS Dayton quadrangle1:100000

Museums hold 209 specimens collected within 10 miles of County Line (historical) between 1835 and 1973: 200 Animalia, 5 Fungi, 4 Plantae. 12 distinct Species records are shown. Collected by A V DEL, A. Gaufin, A. R. Gaufin 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
	Uredo	1897	Prof. W.A. Kellerman
	Botryodiplodia (Sacc.) Sacc.	1921	L.M. Fenner	Mill Creek Farm
	Catocala amatrix Hübner, 1813	1938	not recorded	Tipp City
	Botrypus virginianus (L.) Michx.	1835	Joseph C. Frank	Ohio, Miami [County]
	Lanius ludovicianus Linnaeus, 1766	1898	Collector(s): L. Kumlein	Milton, Ohio
	Bombus impatiens Cresson, 1863	1926	not recorded
	Campeloma decisum (Say, 1817)	1926	Wright, Herman P
	Elimia livescens (Menke, 1830)	1926	Wright, Herman P
	Physidae	1926	Wright, Herman P
	Sphaeriidae	1926	Wright, Herman P
	Eurycea bislineata (Green, 1818)	1927	Thomas, E. S. (Edward S.) & Hine, J. S. (James Stewart)	Near Vandalia, Montgomery Co., Ohio
	Eurycea longicauda longicauda (Green, 1818)	1927	Thomas, E. S. (Edward S.) & Hine, J. S. (James Stewart)	Near Vandalia, Montgomery Co., Ohio

All 209 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 10 workings within 5 miles of County Line (historical): 5 past producers, 4 producers, 1 plant. 5 still produce. What was taken out: Sand and Gravel, Construction, 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 Miami 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 1067346. 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.