Grass Island
Island in Penobscot County, Maine · on the USGS Howland quadrangle
45.15395, -68.62947
Maps that show Grass Island
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Howland, ME
Detailed map of terrain, trails and roads
USGS topo, 2024
Passadumkeag, ME
Old map for history, not navigation
USGS historical 15-minute topo (1917)
Passadumkeag, ME
Old map for history, not navigation
USGS historical 15-minute topo (1960)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-32 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-11 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-12 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).