Thirtyone Lake
Lake in Itasca County, Minnesota · on the USGS Lawrence Lake East quadrangle
47.47015, -93.31705
Maps that show Thirtyone Lake
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Lawrence Lake East, MN
USGS topo, 2022
Trout Lake, MN
USGS historical 15-minute topo (1920)
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).