Alagnak River

Alagnak River Rapids

The Alagnak River is a 127 km ( 79 miles ) long river in the southwest of the U.S. state of Alaska with a catchment area of ​​about 3600 km ². In Yupik, the word Alagnak means "to err ". Each year changes of the river and branches new, which is why it is also called " Branch River" ( " to branch " = " branch out ").


The Alagnak begins at the outflow of the Kukaklek Lake in Katmai National Park. The upper course is located in the Aleutian Island chain. At first 9.5 km of the Alagnak flows slowly through the tundra. Here the vegetation consists mainly of spruce. Then, the valley becomes narrower with almost vertical rock faces. From km 11.5 to km 23, it flows through a gorge at a speed of about 11-13 km / h The Nonvianuk River flows near 33 km in the Alagnak. Meandering to the west crosses the Alagnak the Alaska Peninsula and empties into the Kvichak River, which flows, in turn, in the Bristol Bay ( Bering Sea).

Flora and Fauna

Thanks to the rich supply of salmon, there is the river in the summer and fall of a significant bear population ( grizzly and black bear ). The largest part of the catchment area is a winter habitat for caribou dar. moose are found throughout the year. Along the river you can find beaver, fox, lynx, wolverine, mink, otter, and occasionally the wolf. In the water there including several salmon species, rainbow trout, char, grayling and pike. Along the Alagnak there is a varied vegetation with spruce, willow and many kinds of berries.

Alagnak Wild River

The upper 108 km of the Alagnak have the status of worth protecting National Wild and Scenic Rivers within the meaning of ANILCA (Alaska National Interest Conservation Act Country ). This stretch of river is also called " Alagnak Wild River " and is managed by the National Park Service.


The Alagnak is one of the most important rivers for sport fishers in Alaska.

For canoeists, the river is navigable. In the canyon you will encounter whitewater I to III. The Portage is possible but difficult.