Colonial Island
Island in Frederick County, Maryland · on the USGS Harpers Ferry quadrangle
39.32482, -77.66832
Maps that show Colonial Island
Get them in the map app
Harpers Ferry, WV-VA-MD
Detailed map of terrain, trails and roads
USGS topo, 2023
Antietam, MD
Old map for history, not navigation
USGS historical 15-minute topo (1910)
Potomac Heritage Trail Map - Potomac Heritage National Scenic Trail
National Park Service Maps · Potomac Heritage National Scenic Trail
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Area Chart A-01 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-29 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-36 (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-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).