Contreras, Ohio

The same ground, surveyed 77 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1915 1992

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.

• 1915 USGS College Corner quadrangle1:48000
• 1918 USGS College Corner quadrangle1:62500
• 1918 USGS College Corner quadrangle1:62500
• 1918 USGS College Corner quadrangle1:62500
• 1918 USGS College Corner quadrangle1:62500
• 1953 USGS Cincinnati quadrangle1:250000
• 1953 USGS Cincinnati quadrangle1:250000
• 1953 USGS Cincinnati quadrangle1:250000
• 1957 USGS Cincinnati quadrangle1:250000
• 1960 USGS College Corner quadrangle1:24000
• 1960 USGS College Corner quadrangle1:24000
• 1960 USGS College Corner quadrangle1:24000
• 1960 USGS College Corner quadrangle1:24000
• 1986 USGS Dayton quadrangle1:100000
• 1986 USGS Dayton quadrangle1:100000
• 1992 USGS College Corner quadrangle1:24000

The county history of 1905 has no passage naming this settlement, which was common for the smaller places. Its township is covered in full.

Museums hold 1,778 specimens collected within 10 miles of Contreras between 1888 and 1975: 770 Fungi, 743 Animalia, 191 Plantae, 60 Protozoa, 13 Unrecorded, 1 Chromista. 12 distinct Species records are shown. Collected by ?, A. V. J.; W. G. S., A.L.; Bucholtz, I. 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
	Taphrina communis (Sadeb.) Giesenh.	1888	J. L. James
	unnamed	1893	B. Fink	Oxford.
	Hordeum sativum Pers.	1895	Kellerman, W.A.	Oxford, Butler Co. Ohio.
	Taphrina pruni (Fuckel) Tul.	1888	J. L. James	Oxford.
	Xylaria polymorpha (Pers.) Grev.	1888	James J. F.	Oxford
	Erysiphe euphorbiae J.R.Reddy & A.P.Reddy	1889	L. O. O.	Oxford
	Epifagus virginiana (L.) Barton	1890	E. E. Bogue	Oxford.
	Mentha spicata L.	1894	E. L. Moseley	Oxford
	Agrostis perennans (Walter) Tuck.	1895	Collector(s): Edwin Lincoln Moseley	Oxford
	Agrostis scabra Willd.	1895	Collector(s): Edwin Lincoln Moseley	Oxford
	Gratiola virginiana L.	1895	Collector(s): Edwin Lincoln Moseley	Oxford
	Ustilago hordei (Pers.) Kell. & Sw.	1895	W. A. Kellerman

All 1,778 specimens within 10 miles, at the Global Biodiversity Information Facility.

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 1062709. 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.