Bulkhead, Ohio

The same ground, surveyed 75 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1911 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.

• 1911 USGS Spencerville quadrangle1:62500
• 1944 USGS Spencerville quadrangle1:62500
• 1953 USGS Muncie quadrangle1:250000
• 1953 USGS Muncie quadrangle1:250000
• 1953 USGS Muncie quadrangle1:250000
• 1953 USGS Muncie quadrangle1:250000
• 1953 USGS Muncie quadrangle1:250000
• 1956 USGS Muncie quadrangle1:250000
• 1960 USGS St. Marys quadrangle1:24000
• 1960 USGS St. Marys quadrangle1:24000
• 1960 USGS St. Marys quadrangle1:24000
• 1986 USGS Lima quadrangle1:100000
• 1986 USGS Lima quadrangle1:100000
• 1986 USGS Lima quadrangle1:100000

Museums hold 616 specimens collected within 10 miles of Bulkhead between 1800 and 1974: 519 Animalia, 96 Plantae, 1 Bacteria. 12 distinct Species records are shown. Collected by A. Wetzstein, Albert Wetzstein, Anonymous collector s.n. "91" [1898-08-30] 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
	Dryopteris spinulosa (O.F.Müll.) Watt	1895	Wetzstein, A.	St. Marys, Ohio.
	Equisetum hyemale L.	1895	Wetzstein, A.	St. Marys.
	Adiantum capillus-veneris L.	1896	Wetzstein, A.	St. mary's. Greenhouse
	Mentha aquatica L.	1800	Ballenstedt, B.	Bremen: An der WÅmme in Oberneuland bei Bremen
	Geum urbanum L.	1883	Baßmann	Bremen: Vegesack, feuchtes, schattiges Gehîlz bei Holthorst, sehr selten
	Rubus idaeus L.	1889	Meyerholz	Bremen: auf Quellgrund, Torf u. Humus
	Stachys aspera Michx.	1889	Wilhelm Schibler	Ohio: St. Marys, borders of Canal.
	Lobelia dortmanna L.	1892	Wendelken	Bremen: Bremen-Lesum, Lesum
	Rubus condensatus P.J.Müll.	1892	Elmgoeth, Fr.	Niedersachsen: Soltau in der Lüneburger Heide
	Erimyzon sucetta (Lacepède, 1803)	1893	P. Kirsch	St. Marys
	Fundulus notatus (Rafinesque, 1820)	1893	P. Kirsch	St. Marys River, St. Marys, Ohio
	Notropis whipplei (Girard, 1856)	1893	P. Kirsch	St. Marys River, St. Marys, Ohio

All 616 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 1 working within 5 miles of Bulkhead: 1 producer. All of them still produce. What was taken out: 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 Auglaize 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 1062678. 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.