Biorka Island
Island in Sitka County, Alaska · on the USGS Port Alexander D-5 SW quadrangle
56.85389, -135.53306
Maps that show Biorka Island
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Port Alexander D-5 SW, AK
Detailed map of terrain, trails and roads
USGS topo, 2021
Port Alexander D-5
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
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).