Sedan, Ohio

The same ground, surveyed 76 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1915 1991

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 Otway quadrangle1:62500
• 1915 USGS Otway quadrangle1:62500
• 1917 USGS Otway quadrangle1:62500
• 1957 USGS Huntington quadrangle1:250000
• 1957 USGS Huntington quadrangle1:250000
• 1957 USGS Huntington quadrangle1:250000
• 1960 USGS Huntington quadrangle1:250000
• 1961 USGS Wakefield quadrangle1:24000
• 1961 USGS Wakefield quadrangle1:24000
• 1961 USGS Wakefield quadrangle1:24000
• 1986 USGS Maysville quadrangle1:100000
• 1991 USGS Maysville quadrangle1:100000

The county-history sources names this settlement in its chapter on Morgan Township. These are the passages that mention it, exactly as the scans read.

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 78 fires within 5 miles of Sedan between 2003 and 2020, burning about 353 acres in total. None started naturally. 6 were 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:

• Mount Joy
• Bear Creek
• Crabtree
• Henley
• Otway
• Youngs

Every fire recorded in Scioto County

Regional context, not property-specific evidence. Museums hold 1,042 specimens collected within 10 miles of Sedan between 1885 and 1975: 916 Animalia, 104 Fungi, 20 Plantae, 1 Unrecorded, 1 Chromista. 12 distinct Species records are shown. Collected by A.P. Morgan, A.P. Morgan; L.V. Morgan, B. W. Evermann 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
	Bovistella Morgan	1885	A.P. Morgan	Preston
	Cylindrocladium scoparium Morgan	1893	A.P. Morgan	Preston
	Albugo candida (Pers. ex J.F.Gmel.) Roussel	1897	F.L. Stevens	Alum Rock
	Harpographium fasciculatum (Sacc.) Sacc.	1887	A.P. Morgan	Preston
	Puccinia recondita Roberge ex Desm.	1889	Craig M.	Franklin Co. "hayden's Falls" on Scioto River
	Myelochroa galbina (Ach.) Elix & Hale	1893	Jones, T.H.B	Otway
	Hybognathus nuchalis Agassiz, 1855	1894	Bean & B. Evermann	Scioto Creek, Coopersville, New York
	Notropis atherinoides Rafinesque, 1818	1894	B. W. Evermann	Cooperville; Scioto Cr
	unnamed	1897	Morgan	Preston
	Potamilus alatus (Say, 1817)	1909	not recorded	Scioto River, Pakistan
	Quadrula Rafinesque, 1820	1909	not recorded	Piketon, Scioto River
	Eratoneura minor (Beamer, 1932)	1921	McAtee

All 1,042 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 1 working within 5 miles of Sedan: 1 producer. All of them still produce. What was taken out: Flagstone. 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 Scioto County

Regional context, not property-specific evidence. The National Weather Service names Sedan in 1 storm report between 2018 and 2018: 1 flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

Every storm recorded in Scioto 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 1063006. 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.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.