The Vermont section of the Appalachian Trail (AT) runs about 150 miles from the Massachusetts border northeast to the New Hampshire border while passing through the Green Mountains.
The southwestern section of the AT in Vermont runs from the Massachussets border for about 100 miles northeast through the Green Mountains. This section follows the infamous Long Trail along the rugged crest of the Green Mountains. Near Killington Mountain and Stratton Mountain, the trail approaches the treeline. At Sherburne Pass, the route passes through high, rugged country of abandoned, overgrown farm and woodlands on the way towards the Connecticut River.
The eastern section of the AT in Vermont runs from the Green Mountains to the New Hampshire border along the Connecticut River, which is about 50 miles. This stretch passes through high elevation rugged country alternating between forest and overgrown farmland.
The best time of year to experience this section of the Appalachian Trail is from June through September. Prior to June, you can expect to find plenty of muddy trails.
The Appalachian Trail, commonly known by backpackers as the AT, is a popular 2,167 mile thru-hike along a wilderness footpath. The Appalachian Trail is a registered National Scenic Trail that winds along the crest of the Appalachian Mountains from Georgia in the south to Maine in the north. More specifically, the AT runs through the scenic wooded and pastoral lands of fourteen eastern US states, stretching from Springer Mountain, Georgia, in the south to Mount Katahdin, Maine, in the north. The Appalachian Trail route is more than 99 percent protected by either federal ownership, state ownership or designated rights-of-way from local land owners.
Overall, Appalachian Trail is the 2nd most popular hiking trail of all 9 hikes in Vermont.