The former grounds of Fort Ethan Allen stand on the north side of
Vermont Route 15, roughly divided in half between southeastern Colchester and southwestern Essex. The grounds are organized around a large elliptical
parade ground located just north of the main road, with circulation in the former base complex provided by series of concentric roadways joined by shorter segments radiating away from the parade ground. The grounds are more than , and include a variety of former military buildings, in some places now including post-military construction. Fronting the parade ground along Dalton Drive are houses that originally served as officer housing, and the fort's main administration building. Barracks, former cavalry stables, and other types of service buildings line the roads further out from the parade ground. A cluster of buildings at the far eastern end of the property includes one that has been converted into a museum recounting the fort's history. Its original buildings were built in the then-popular Colonial Revival style, which was largely continued in later construction at the base. ==History==