Caribou Air Force Station, Aroostook National Wildlife Refuge

Caribou Air Force Station, also known as North River Depot and East Loring, is a defunct Air Force Station that operated from 1951 until its absorption into Loring Air Force Base in 1962. It was located in Limestone, Maine, adjacent to Loring. Between 1951 and 1962 Caribou was an Operational Storage Site for Air Materiel Command, one of five in the United States, and the weapons storage and maintenance facility for Loring alert aircraft. ()