It’s easy to marvel at the striking symmetry of Shishaldin Volcano on Unimak Island. One of the many active volcanoes in Alaska Maritime National Wildlife Refuge, it stands 9,373 ft above sea level, making it the highest mountain peak on the Aleutian Islands. In this land of cold and ice, the steam from this smoking volcano makes a remarkable sight. Photo by Kristine Sowl, U.S. Fish and Wildlife Service.