Green Valley, Ohio

The same ground, surveyed 51 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1915 1966

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 Fredericktown quadrangle1:62500
• 1943 USGS Fredericktown quadrangle1:62500
• 1950 USGS Marion quadrangle1:250000
• 1961 USGS Fredericktown quadrangle1:24000, 3 printings
• 1961 USGS Fredricktown quadrangle1:24000
• 1962 USGS Marion quadrangle1:250000
• 1966 USGS Marion quadrangle1:250000, 3 printings

A History of Knox County, Ohio, from 1779 to 1862 Inclusive; Comprising Biographical Sketches, Anecdotes .., published 1862; History Knox County, Ohio, published 1881 has no passage naming this settlement, which was common for smaller places. Its township is covered in full.

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1 fire within 5 miles of Green Valley in 2012, burning about 6 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:

• Bangs
• Dalrymple Corners
• Five Corners
• Milfordton
• Mount Liberty

Every fire recorded in Knox County

Regional context, not property-specific evidence. Museums hold 566 specimens collected within 10 miles of Green Valley between 1835 and 1974: 514 Animalia, 42 Fungi, 9 Plantae, 1 Protozoa. 12 distinct Species records are shown. Collected by A. Hall, A. P. Morgan, Adler, K. K. 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
	Fusicladium Bonord.	1883	W. A. Kellermann
	Pestalotia De Not., 1841	1883	W. A. Kellermann	No locality on label
	Phyllosticta Pers., 1818	1883	Kellerman
	Polystichum acrostichoides (Michx.) Schott	1835	Joseph C. Frank	Ohio, s.loc.
	Notophthalmus viridescens (Rafinesque, 1820)	1837	Müller	Ohio
	Pooecetes gramineus (J.F.Gmelin, 1789)	1863	Turati (comte), Ercole
	Delphinium exaltatum Aiton	1877	E Sheets
	Hydrastis canadensis L.	1877	E Sheets
	Sturnella magna magna (Linnaeus, 1758)	1877	not recorded	unspecified
	Accipiter striatus velox (A.Wilson, 1812)	1879	Willard L. Maris
	Gallinula chloropus (Linnaeus, 1758)	1879	Porter, J.B.
	Lobelia inflata L.	1881	Andriessen, H.	near Fredericktown, OH

All 566 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 2 workings within 5 miles of Green Valley: 2 producers. All of them still produce. 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 Knox 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 1067422. 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.