Arctic National Wildlife Refuge (ANWR) is located in northeast Alaska. It is the largest national wildlife refuge in the United States. The refuge was created in 1960 but it was expanded in 1980. The area protects six different ecozones from the northern coast to the Brooks Mountain range to the mighty Yukon River to boreal forest. The area is home to polar bears, caribou, wolves, eagles. During the summer, thousands of migratory birds visit. The refuge is open to the public and is true wilderness. There are no roads in the ANWR or any services outside of the small town of Kaktovik.