Monroe, Ohio

The same ground, surveyed 69 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

1917 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.

• 1917 USGS Xenia quadrangle1:62500
• 1917 USGS Xenia quadrangle1:62500
• 1947 USGS Columbus quadrangle1:250000
• 1955 USGS Cedarville quadrangle1:24000
• 1955 USGS Cedarville quadrangle1:24000
• 1961 USGS Columbus quadrangle1:250000
• 1962 USGS Columbus quadrangle1:250000
• 1967 USGS Columbus quadrangle1:250000
• 1967 USGS Columbus quadrangle1:250000
• 1968 USGS Cedarville quadrangle1:24000
• 1968 USGS Cedarville quadrangle1:24000
• 1968 USGS Cedarville quadrangle1:24000
• 1986 USGS Springfield quadrangle1:100000
• 1986 USGS Springfield quadrangle1:100000

Museums hold 920 specimens collected within 10 miles of Monroe between 1870 and 1975: 660 Animalia, 142 Plantae, 116 Fungi, 1 Protozoa, 1 Unrecorded. 12 distinct Species records are shown. Collected by ?, A JOHN, A. H. Bauer 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
	Leiocolea gillmanii (Austin) A.Evans	1922	William Bayard Taylor; G. H. Conklin	Clifbore[sp?] Gorge
	Leiocolea badensis (Gottsche ex Rabenh.) Jørg.	1923	Mrs. Bayard R. Taylor	Clifton Gorge
	Bidens bipinnata L.	1870	J Y Bergen; T L Bergen	Yellow Springs
	Rhynchostegium serrulatum (Hedw.) A.Jaeger	1873	Collector unspecified	Clifton
	Rhytidium rugosum (Hedw.) Kindb.	1873	not recorded	Clifton
	Thamnobryum alleghaniense (Müll.Hal.) Nieuwl.	1875	H. J. Biddlecome	Clifton
	Brachythecium laetum (Brid.) Schimp.	1876	not recorded	Clifton
	Brachythecium oxycladon (Brid.) A.Jaeger	1876	Mrs. Spence
	Bryum affine (Blandow ex Funck) Brid.	1876	Collector unspecified	Clifton
	Eurhynchium hians (Hedw.) Sande Lac.	1876	H. J. Biddlecome	Clifton
	Geocalyx graveolens (Schrad.) Nees	1876	not recorded	Clifton
	Plagiochila asplenioides (L.) Dumort.	1876	H. J. Biddlecome	Clifton

All 920 specimens within 10 miles, at the Global Biodiversity Information Facility.

The federal mineral resources record lists 2 workings within 5 miles of Monroe: 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 Greene 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 1062903. 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.