2017 Map of Ketchikan A-4 SE

About this map

Tongass National Forest dominates the rugged eastern coastline of this maritime quadrant, where the mainland meets the vast Gulf of Alaska. The map documents a complex coastline defined by deep-water passages and treacherous navigational hazards. The Revillagigedo Channel serves as a primary marine corridor, framed by prominent landmarks such as Tent Point and the southernmost reaches of the Alexander Archipelago at Cape Fox. Isolated formations like the Slate Islands and White Reef dot the offshore waters, signifying the region's character as a frontier of both industry and conservation. This 2017 data captures the shoreline in high detail, noting specific hazards for mariners and researchers alike, from the solitary Snail Rock to the distant House Rock at the map's southern edge.