Petersburg Creek–Duncan Salt Chuck Wilderness

The Petersburg Creek–Duncan Salt Chuck Wilderness is a protected wilderness area on Kupreanof Island in southeast Alaska within the Tongass National Forest. Established in 1980 through the Alaska National Interest Lands Conservation Act, it encompasses 46,849 acres of temperate rainforest, salt marshes, and rugged mountains formed by glaciers. Its importance lies in preserving a relatively intact stretch of the Tongass coastal environment, including low tidal wetlands and the steeply carved inland terrain beyond them.

Kupreanof, Alaska · United States