The United States Congress designated the Andreafsky Wilderness (map
) in 1980 and it now has a total of 1,300,000 acres
All of this wilderness is located in Alaska
and is managed by the Fish and Wildlife Service.
The Andreafsky Wilderness is a vast expanse of alpine and wetland tundra, located in the Yukon Delta National Wildlife Refuge. Flowing through this Wilderness are the Andreafsky River and its East Fork, which flow southwest along parallel paths and eventually drain into the Yukon River, outside the Wilderness boundaries. Here you will find moose, foxes, beavers, martens, minks, wolves, wolverines, caribou, large populations of black and brown bears, and millions of salmon. Forests of white spruce and balsam poplar grow along the riverbanks through the Wilderness. Near the headwaters, the forests give way to alpine tundra, and a relatively flat, treeless delta. Fishing is excellent, and the bears know it. Large portions of both the Andreafsky and East Fork have been designated National Wild and Scenic Rivers, attracting river runners and anglers. However, the East Fork runs closer to the mountains and with more trees.
Elevations within the Andreafsky Wilderness boundaries range from about 50 feet above sea level to nearly 2,800 feet in the northeastern portion of the Wilderness. Average summer temperatures range from the upper 40s (Fahrenheit) to low 60s. Winter temperatures average well below freezing—ranging from 0 to 15 degrees—and 18.6 inches of precipitation falls annually.