Ritter Marsh
Swamp in Ottawa County, Ohio · on the USGS Oak Harbor quadrangle
41.62143, -83.20416
Maps that show Ritter Marsh
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Oak Harbor, OH
Detailed map of terrain, trails and roads
USGS topo, 2023
Oak Harbor, OH
Old map for history, not navigation
USGS historical 15-minute topo (1900)
Oak Harbor, OH
Old map for history, not navigation
USGS historical 15-minute topo (1952)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-28 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-11 (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).