Caribou Air Force Station
Caribou Air Force Station, also known as North River Depot and East Loring, is a defunct Air Force Station that operated from 1951 until some time when it was absorbed 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 (AMC-OSS), one of five in the United States, and the weapons storage and maintenance facility for Loring alert aircraft.
Caribou Air Force Station
Building No. 233 (‘S’ Structure) was constructed in 1956. This assembly building was known as the Surveillance Building. Constructed of reinforced concrete columns and concrete block on a reinforced concrete foundation, the building had three sections, each of which had a flat roof. The central section was a long, double-height structure with two overhead doors on both the eastern and western elevations. A simple metal overhang sheltered the western doors. Attached to the southern side of the building was a one-story structure with an overhead door on the eastern elevation, two large doors on the southern elevation, and a single door on the western elevation. The interior of this double-height central section of the building consisted of a center section that was 19 feet in width. In the center of this section at the eastern elevation of the building, was an outside door that led to an office area. The office was 8 feet-4 inches in length by 19 feet in width. Two doors were located at each end of the office. These doors opened to the south bay and North Bay within the central section of the structure. The back wall of the office was solid concrete block. On the other side of the back wall of the office were two rooms. Each room was approximately 13 feet-3 inches in length by 9 feet-3 inches in width. From the eastern elevation, the southern room was the calibration room. It had a single door that opened to the southern bay. The calibration room had four 6- foot work benches. The northern room was a supply room. The supply room had two workbenches and bins for the storage of hardware, etc. It had a door that opened at the back of the room into a corridor. This corridor was 8 feet in width by 19 feet in length. The corridor connected the southern and northern bays of the structure. Doors at the back of the corridor lead to two more rooms.