About this Unit
Loran C Station Caribou, located near Caribou, Maine, was a critical United States Coast Guard navigation facility established during the Cold War era. Commissioned in 1978, the station was part of the North Atlantic Loran-C chain, providing precise long-range radio navigation signals for military and civilian vessels and aircraft. Its strategic location supported both national defense and commercial operations, particularly across the North Atlantic corridor. The station remained operational until its decommissioning in 2010, following the widespread adoption of GPS technology.
Historical Facts
•
LORAN-C Station Caribou's Role: The station in Caribou, Maine, was a crucial part of the LORAN-C (Long Range Navigation) system, which provided hyperbolic radio navigation for military and civilian ships and aircraft across the North Atlantic.
•
Operational Dates: The Caribou station began operations in 1976 and remained in continuous use until its closure in 2010, making it one of the last LORAN-C stations in the United States.
•
Key to Cold War Navigation: During the Cold War, LORAN-C Station Caribou was pivotal in supporting U.S. Navy submarine and surface fleet navigation, particularly for units operating in the North Atlantic.
•
Impressive Mast: The station featured a 700-foot (213-meter) tall mast radiator antenna, which was a notable landmark in northern Maine and one of the tallest structures in the region.
•
Network Coverage: Caribou was a "Master Station" for the Canadian East Coast LORAN-C chain, enabling accurate navigation signals to be transmitted over thousands of miles.
•
Severe Weather Operations: The station had to operate reliably through some of the harshest winters in the continental U.S., with crews often braving sub-zero temperatures and snowdrifts several feet deep to keep the transmitters running.
•
Coast Guard Personnel: The site was staffed and operated by the U.S. Coast Guard, which rotated crews in and out of the remote station to maintain 24/7 coverage and support.
•
Community Impact: The presence of the station and its personnel made a significant economic and social contribution to the nearby town of Caribou, fostering strong ties between the military and local residents.
•
Transition to GPS: The closure of LORAN-C Station Caribou was part of the broader shift from terrestrial radio navigation to satellite-based GPS systems, which rendered LORAN-C largely obsolete.
•
Legacy and Preservation: While the mast was demolished in 2015, the legacy of the station is preserved by local historical groups, and former staff still share stories about their experiences working at one of the most remote and important navigation sites in U.S. history.
