Otter Island
Island in Ashland County, Wisconsin · on the USGS Oak Island quadrangle
46.99604, -90.69102
Maps that show Otter Island
Get them in the map app
Oak Island, WI
Detailed map of terrain, trails and roads
USGS topo, 2022
Madeline Island, WI
Old map for history, not navigation
USGS historical 15-minute topo (1964)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-14 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-02 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).