Grass Lake
Lake in Benzie County, Michigan · on the USGS Karlin quadrangle
44.60807, -85.85225
Maps that show Grass Lake
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Karlin, MI
Detailed map of terrain, trails and roads
USGS topo, 2023

Thompsonville, MI
Old map for history, not navigation
USGS historical 15-minute topo (1956)

Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)

IFR Enroute Low Altitude Chart L-31 (U.S.)
FAA, 2026-10-29

IFR Enroute High Altitude Chart H-02 (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
Name, class, county and location: USGS Geographic Names Information System (public domain).