Grass Lake Impoundment
Reservoir in Itasca County, Minnesota · on the USGS Pennington quadrangle
47.37579, -94.38663
Maps that show Grass Lake Impoundment
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Pennington, MN
Detailed map of terrain, trails and roads
USGS topo, 2022
Portage Lake
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Raven Lake
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Pennington
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Sucker Lakes
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Chippewa National Forest
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).