Grand Portage Lake
Lake in Iron County, Wisconsin · on the USGS Mercer quadrangle
46.17312, -90.04942
Maps that show Grand Portage Lake
Get them in the map app
Mercer, WI
Detailed map of terrain, trails and roads
USGS topo, 2022
Mercer, WI
Old map for history, not navigation
USGS historical 15-minute topo (1955)
Ottawa National Forest
Forest Service forest map
Chequamegon-Nicolet National Forest
Chequamegon — Forest Service forest map
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
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).