Casco Cove Coast Guard Station is a military facility and private use airfield on Attu Island, one of the Aleutian Islands in the U.S. state of Alaska. Owned by the United States Coast Guard, Casco Cove CGS is located west of Anchorage, Alaska. Also known as LORAN Station Attu, the facility was closed on August 27, 2010, but the airfield remains available for emergency use.