Rock Island
Island in Addison County, Vermont · on the USGS Westport quadrangle
44.14144, -73.37457
Maps that show Rock Island
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Vergennes West, VT-NY
Detailed map of terrain, trails and roads
USGS topo, 2024
Port Henry, NY
Old map for history, not navigation
USGS historical 15-minute topo (1894)
Port Henry, NY
Old map for history, not navigation
USGS historical 15-minute topo (1898)
Port Henry, NY
Old map for history, not navigation
USGS historical 15-minute topo (1947)
Port Henry, VT
Old map for history, not navigation
USGS historical 15-minute topo (1945)
Green Mountain and Finger Lakes National Forests
Green Mountain — Forest Service forest map
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-33 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-34 (U.S.)
FAA, 2026-10-29
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-10 (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).