Eareckson Air Station, formerly known as Shemya Air Force Base, is located on the island of Shemya, Alaska. The base was also referred to as "The Black Pearl" or "The Rock." It is the most westerly of the 11th Air Force bases and is located approximately 1,500 miles from Anchorage near the tip of the Aleutian Island chain. There are a couple of phased-array radars and a few dozen other very interesting looking antennas at Shemya. Spent two weeks there, that was enough.