Frederick Sound
Bay in Prince of Wales-Hyder (CA) County, Alaska · on the USGS Sumdum A-6 NW quadrangle
57.17667, -133.90639
Maps that show Frederick Sound
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Sumdum A-6 NW, AK
Detailed map of terrain, trails and roads
USGS topo, 2021
Sumdum A-6
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Tongass National Forest
Forest Service forest map
IFR Enroute Low Altitude Chart L-02 (Alaska)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-01 (Alaska)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).