Punta da Estaca de Bares is the northernmost point of Spain and the Iberian Peninsula, at a latitude of 43° 47′ 38″ North.
Conventionally, it marks the western end of the Cantabrian Sea, or Bay of Biscay, in the North Atlantic ocean.
The peninsula of Estaca de Bares penetrates considerably into the Atlantic Ocean and the Cantabrian Sea, and as a result it is one of the rainiest places in Europe, with more than 2500 mm a year (a Temperate rain forest).
It was first operated by the US Coast Guard beginning in the early 1960s as a LORAN (Long Range Aid to Navigation) Station.
In 1978, after the Coast Guard ended the LORAN operations, the US Air Force assumed control of the base.