The Ahklun Mountains are located in the northeast section of the Togiak National Wildlife Refuge in southwest Alaska.

They extend southwest from the Kanektok and Narogurum Rivers to Hagemeister Strait and Kuskokwim Bay[1] and support the only existing glaciers in western Alaska.

[4] The Ahklun Mountains are dominated by alpine tundra, heath, and barrens, while moist sedge-tussock meadows occur in valley bottoms.

[6] Geological evidence show that during the Pleistocene era there were repeated glaciations that have carved out a large number of valley troughs.

[3] In the lowlands, areas not reached by the glaciation, the principal geographic features are the moraines and ridges formed by thrusting ice.