"Class I Areas" were specifically identified by Congress in the federal Clean Air Act as worthy of extra protection. These areas have unique visual, ecological, or social values, or are particularly sensitive to the effects of air pollution.
Moosehorn is one of the northernmost National Wildlife Refuges in the Atlantic Flyway, a migratory route that follows the eastern coast of North America. The refuge provides important feeding and nesting habitat for many bird species, including waterfowl. Wading birds, shorebirds, upland game birds, songbirds, and birds of prey.
The refuge consists of two divisions. The Baring Division covers 20,016 acres and is located off U.S. Route 1, southwest of Calais. The 8,735 acre Edmunds Division is between Dennysville and Whiting on U.S. Route 1 and borders the tidal waters of Cobscook Bay. Each division contains a National Wilderness Area, thousands of acres managed to preserve their wild character for future generations. See http://www.fws.gov/northeast/moosehorn/ for more information.
Clean and Clear
Moderately Polluted and Hazy
Very Polluted and Hazy
For current visibility conditions, see the Moosehorn NWR, Maine Live Camera.