Harmon Ridge
Ridge in Monroe County, Ohio · on the USGS Graysville quadrangle
39.63709, -81.14874
Maps that show Harmon Ridge
Get them in the map app
Graysville, OH
Detailed map of terrain, trails and roads
USGS topo, 2023
New Matamoras, OH
Old map for history, not navigation
USGS historical 15-minute topo (1905)
New Matamoras, OH
Old map for history, not navigation
USGS historical 15-minute topo (1924)
New Matamoras, OH
Old map for history, not navigation
USGS historical 15-minute topo (1926)
Marietta Unit Motor Vehicle Use Map
Forest roads and trails open to vehicles
Wayne National Forest (2026)
Wayne National Forest
Forest Service forest map
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-29 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-36 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-10 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-12 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).