Waubay National #WildlifeRefuge in South Dakota

From the U.S. Department of the Interior:

Sunset sets the sky ablaze at Waubay National #WildlifeRefuge in South Dakota. The refuge is located in the prairie pothole region, one of the largest and most important breeding areas for ducks and migratory birds in North America. Artist George Catlin described the area as a “blue and boundless ocean of prairie.” It also has abundant lakes, marshes and woodlands. Follow along all day as USFWS National Wildlife Refuge System takes over Interior's Instagram, sharing beautiful sunsets from wildlife refuges across the country and highlighting some of their important work.http://instagram.com/usinterior.