Davidson Run, Ohio

The same ground, surveyed 94 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1901 1995

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.

• 1901 USGS Dublin quadrangle1:62500
• 1903 USGS Dublin quadrangle1:62500
• 1903 USGS Dublin quadrangle1:62500
• 1950 USGS Marion quadrangle1:250000
• 1955 USGS Northwest Columbus quadrangle1:24000
• 1955 USGS Northwest Columbus quadrangle1:24000
• 1962 USGS Marion quadrangle1:250000
• 1965 USGS Northwest Columbus quadrangle1:24000
• 1965 USGS Northwest Columbus quadrangle1:24000
• 1965 USGS Northwest Columbus quadrangle1:24000
• 1966 USGS Marion quadrangle1:250000
• 1966 USGS Marion quadrangle1:250000
• 1966 USGS Marion quadrangle1:250000
• 1986 USGS Bellefontaine quadrangle1:100000
• 1992 USGS Bellefontaine quadrangle1:100000
• 1995 USGS Northwest Columbus quadrangle1:24000
• 1995 USGS Northwest Columbus quadrangle1:24000

The county history of 1858 has no passage naming this settlement, which was common for the smaller places. Its township is covered in full.

Museums hold 9,259 specimens collected within 10 miles of Davidson Run between 1804 and 1975: 7,302 Animalia, 1,262 Fungi, 547 Plantae, 117 Chromista, 30 Unrecorded, 1 Protozoa. 12 distinct Species records are shown. Collected by 19 V 1938 in original publication, Knull, =, ? 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
	Cintractia sorghi (Sorokn) De Toni	1900	Tyler, F.J.; O. E. Jennings	Columbus
	Juniperus virginiana var. virginiana	1804	Dr. Paddock	Worthington
	Platanthera psycodes (L.) Lindl.	1805	J. R. Paddock	Worthington
	Carex comosa Boott	1809	Collector unknown	Worthington, O. [Inferred county from precise loc.]
	Hirundo Linnaeus, 1758	1814	not recorded	Columbus Ohio, Franklin, Ohio, USA
	Callimome strobiloides Huber, 1927	1821	C. Huber	Columbus
	Solidago riddellii Frank	1832	W. A. Kellerman	A few miles N of Columbus.
	Carex lupulina Muhl. ex Willd.	1834	Anonymous	Columbus.
	Anomodon viticulosus (Hedw.) Hook. & Taylor	1837	W. S. Sullivant	Near Columbus
	Acris crepitans blanchardi Harper, 1947	1897	not recorded	No Further Locality Data
	Albugo candida (Pers. ex J.F.Gmel.) Roussel	1897	Clevenger, J. F.	Columbus
	Ameiurus melas (Rafinesque, 1820)	1897	United States Bureau of Fisheries, R. Osburn & E. Williamson	Ohio, Scioto River, Franklin County

All 9,259 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 2 workings within 5 miles of Davidson Run: 1 past producer, 1 producer. 1 still produces. What was taken out: Calcium. 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 Franklin 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 2771622. 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.