Classic U-shaped valley carved by retreating mountain glaciers. Many glacial features can be seen: cirques, horns, arete ridges, till, hanging valleys.
Videography;u.s. fish and wildlife service;wildlife refuges;wildlife conservation;
An overview of the 5.5 million acres that encompass these two spectacular refuges. Becharof National Wildlife Refuge lies between Katmai National Park and Preserve and Alaska Peninsula Refuge.