Monroe Mills, Ohio

The same ground, surveyed 54 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1912 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.

• 1912 USGS Gambier quadrangle1:62500
• 1912 USGS Gambier quadrangle1:62500
• 1914 USGS Gambier quadrangle1:62500
• 1943 USGS Gambier quadrangle1:62500
• 1950 USGS Marion quadrangle1:250000
• 1961 USGS Danville quadrangle1:24000
• 1961 USGS Danville quadrangle1:24000
• 1961 USGS Danville quadrangle1:24000
• 1962 USGS Marion quadrangle1:250000
• 1966 USGS Marion quadrangle1:250000
• 1966 USGS Marion quadrangle1:250000
• 1966 USGS Marion quadrangle1:250000

A History of Knox County, Ohio, from 1779 to 1862 Inclusive; Comprising Biographical Sketches, Anecdotes .., published 1862; History of Knox County, Ohio, Its Past and Present, Containing a Condensed, Comprehensive History of Ohio, Including an Outline History of the Northwest; a Complete History of Knox County ... a Record of Its Soldiers in the Late War; Portraits of Its Early Settlers and Prominent Men ... Biographies and Histories of Pioneer Families, Etc, published 1881 names this settlement in its chapter on Monroe 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 44 fires within 5 miles of Monroe Mills between 2005 and 2020, burning about 30 acres in total. None started naturally. 3 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:

• Apple Valley
• Howard
• Millwood
• Gambier
• Amity
• Artanna

Every fire recorded in Knox County

Regional context, not property-specific evidence. Museums hold 366 specimens collected within 10 miles of Monroe Mills between 1837 and 1975: 314 Animalia, 29 Fungi, 22 Plantae, 1 Protozoa. 12 distinct Species records are shown. Collected by A. P. Morgan, C. G. Lloyd, C. Stein, R. Johnson & J. Jenkinson 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
	Nummularia microplaca (Berk. & M.A.Curtis) Cooke	1883	Dr. W.A. Kellerman
	Pestalotia De Not., 1841	1883	W. A. Kellermann	No locality on label
	Phyllosticta Pers., 1818	1883	Kellerman
	Notophthalmus viridescens (Rafinesque, 1820)	1837	Müller	Ohio
	Pooecetes gramineus (J.F.Gmelin, 1789)	1863	Turati (comte), Ercole
	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.
	Phyllosticta pyrina Sacc.	1883	W. A. Kellerman
	Phyllosticta verbenae Sacc., 1879	1883	Prof. Kellerman
	Ramularia arvensis Sacc.	1883	Kellerman
	Septoria E.M.Fries, 1819	1883	Kellerman

All 366 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 3 workings within 5 miles of Monroe Mills: 2 producers, 1 past producer. 2 still produce. What was taken out: Sand and Gravel, Construction, 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 Knox County

Regional context, not property-specific evidence. The National Weather Service names Monroe Mills in 4 storm reports between 2012 and 2025: 2 hail, 2 thunderstorm wind. 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 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.

This settlement is recorded in the Geographic Names Information System as feature 1065787. 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.