Harlan Park, Ohio

The same ground, surveyed 78 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1908 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.

• 1908 USGS Miamisburg quadrangle1:62500
• 1953 USGS Cincinnati quadrangle1:250000
• 1953 USGS Cincinnati quadrangle1:250000
• 1953 USGS Cincinnati quadrangle1:250000
• 1957 USGS Cincinnati quadrangle1:250000
• 1959 USGS Middletown quadrangle1:24000
• 1959 USGS Middletown quadrangle1:24000
• 1959 USGS Middletown quadrangle1:24000
• 1959 USGS Middletown quadrangle1:24000
• 1959 USGS Middletown quadrangle1:24000
• 1986 USGS Dayton quadrangle1:100000
• 1986 USGS Dayton quadrangle1:100000

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 166 specimens collected within 10 miles of Harlan Park between 1880 and 1973: 111 Fungi, 49 Animalia, 6 Plantae. 12 distinct Species records are shown. Collected by ?, A. C. Billups, A.R. Gaufin, H.H. Ross 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
	Adiantum pedatum L.	1929	?	Hueston Woods.
	Liochlorophis vernalis (Harlan, 1827)	1880	not recorded	Monroe
	Storeria dekayi wrightorum Trapido, 1944	1880	not recorded	Monroe
	Thamnophis sirtalis (Linnaeus, 1758)	1880	not recorded	Monroe
	Physella gyrina (Say, 1821)	1898	A. C. Billups	Middletown
	Polyporus adustus (Willd.) Fr.	1910	Overholts L. O.	West Elkton
	Mycosphaerellaceae	1914	Overholts, L. O.	West Elkton
	Polyporus biformis Fr.	1914	L.O. Overholts	West Elkton
	Polyporus durescens Overh.	1914	Overholts L. O.	West Elkton
	Russula flocculosa Burl.	1914	L. O. Overholts
	Stereum bicolor (Pers.) Fr.	1914	Overholts L. O.	West Elkton
	Clavaria P.Micheli, 1729	1917	Overholts L. O.	West Elkton

All 166 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 8 workings within 5 miles of Harlan Park: 3 past producers, 3 producers, 1 unknown, 1 plant. 4 still produce. What was taken out: Sand and Gravel, Construction, Iron. 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 Butler County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

This settlement is recorded in the Geographic Names Information System as feature 1056310. 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.