Forty Islands
Island in Belknap County, New Hampshire · on the USGS West Alton quadrangle
43.61285, -71.36813
Maps that show Forty Islands
Get them in the map app
West Alton, NH
Detailed map of terrain, trails and roads
USGS topo, 2024
Winnipesaukee, NH
Old map for history, not navigation
USGS historical 15-minute topo (1909)
Winnipesaukee, NH
Old map for history, not navigation
USGS historical 15-minute topo (1956)
White Mountain National Forest
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).