The former Caswell Air Force Station (AFS) sits about a mile straight east of the Loring weapons storage area. Despite its close proximity to Loring, it is not accessible through the Air Force Base itself. To reach Caswell from Loring, take Route 89 east to Limestone, pick up Route 165 north and follow it almost all the way to its intersection with Cross Road. The former Air Force Station will be on your left.
Most of the buildings are still standing and the former base housing appears to be in use today. Many of the buildings are in rough shape, but I've recently been informed that the current owners are in the process of repairing many of the structures and that they have brought much of the base housing back to life.
Caswell AFS was operated by the 766th Aircraft Control & Warning (AC & W) Squadron from 1952 until 1980. In 1959, Caswell became a part of the Semi Automatic Ground Environment (SAGE) system. Several "gap filler" sites like Bridgewater were planned to be attached to the Caswell site, but only Bridgewater and Depot Mountain were ever constructed.
Other sites would have included Deboullie Mountain, ME (between Eagle Lake and Allagash, ME), Whites Brook, NB, Saint Adalbert, QC and Squatteck, QC.
These pictures were taken by my good friend, Jim, when we visited Caswell AFS in the fall of 2008.
Thanks to Brett for the update on the repairs at the site (spring 2010).
The picture at top left comes from the Radomes site.