The eastern terminus of the North Country National Scenic Trail is at Main Junction where the Long Trail and Appalachian Trail join/split at Willard Gap. From there the route follows the Long Trail north then heads through the Moosalamoo National Recreation Area, before following a few roads and the Trail Around Middlebury and eventually following a flat road out to Castle Point on Lake Champlain. The deviation from Long Trail is at the Sucker Brook Shelter.
Online map, and site.