Alaska's 16 national wildlife refuges cover more than 77 million acres--roughly 80 percent of the refuge lands in the entire United States--and protect expansive river delta wetlands, marine coasts shadowed by enormous snow-capped volcanoes, and vast arctic tundra.

Now, with this film, experience them for yourself. Fly over wetlands that attract much of the nation's waterfowl to nest and raise their young. Watch an immense Kodiak brown bear fish for salmon in the clear and wild streams that flow to Alaska's coast. Follow caribou migrating across Arctic tundra. Learn about biologists studying wildlife on refuges and the Native people who still harvest the offerings of these lands.