South Denmark, Ohio

The same ground, surveyed 89 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1905 1994

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 Andover quadrangle1:62500
• 1905 USGS Andover quadrangle1:48000
• 1905 USGS Andover quadrangle1:62500
• 1907 USGS Andover quadrangle1:62500
• 1907 USGS Andover quadrangle1:62500
• 1907 USGS Andover quadrangle1:62500
• 1907 USGS Andover quadrangle1:62500
• 1956 USGS Cleveland quadrangle1:250000
• 1956 USGS Cleveland quadrangle1:250000
• 1956 USGS Cleveland quadrangle1:250000
• 1959 USGS Dorset quadrangle1:24000
• 1959 USGS Dorset quadrangle1:24000
• 1959 USGS Dorset quadrangle1:24000
• 1959 USGS Dorset quadrangle1:24000
• 1962 USGS Cleveland quadrangle1:250000
• 1986 USGS Ashtabula quadrangle1:100000
• 1986 USGS Ashtabula quadrangle1:100000
• 1994 USGS Dorset quadrangle1:24000

The county history of 1920 has no passage naming this settlement, which was common for the smaller places. Its township is covered in full.

The federal wildfire occurrence database lists 2 fires within 5 miles of South Denmark between 2020 and 2020, burning about 2 acres in total. None started naturally. None was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Settlements close enough to share some of these fires:

• Anderson (historical)
• Bulah
• Denmark Center
• Gould
• Jefferson
• Ollins Corners

Every fire recorded in Ashtabula County

Museums hold 235 specimens collected within 10 miles of South Denmark between 1872 and 1975: 202 Animalia, 32 Plantae, 1 Fungi. 12 distinct Species records are shown. Collected by A. B. Fuller, Armbruster, D. C. (Daniel C.), Currutt, D. A. (Dennis A.) 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
	Hymenostylium curvirostre Mitt.	1872	L. B. Tuckerman
	Riccia fluitans L.	1892	E. E. Bogue
	Geranium pusillum L.	1893	Goodrich	Ashtabula Co.
	Araneae	1901	G.W. Peckham
	Margarinotus faedatus (J.E.LeConte, 1845)	1908	R. Sim	Jefferson
	Aix sponsa (Linnaeus, 1758)	1909	G.H. Williams	East Arivell
	Buteo lineatus lineatus (Gmelin, 1788)	1909	J.H. Williams	Ellsville
	Asimina triloba (L.) Dunal	1911	Jennings, O.E.	Ashtabula Gorge below Jefferson
	Aster divaricatus (Nutt.) Torr. & A.Gray	1911	Jennings, O.E.; Jennings, G.K.; Sim, R.J.	Ashtabula Gorge below Jefferson
	Bombus impatiens Cresson, 1863	1911	not recorded	Jefferson, Ashtabula Co., OH
	Cicindela duodecimguttata Dejean, 1825	1911	R J. Sim	Jefferson
	Cyperus bipartitus Torr.	1911	Jennings, O.E.; Jennings, G.K.; Sim, R.J.	Ashtabula Gorge, below Jefferson

All 235 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 2 workings within 5 miles of South Denmark: 1 past producer, 1 producer. 1 still produces. What was taken out: Sand and Gravel, Construction. 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 Ashtabula 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 1062574. 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.

Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.

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.