Underhill, VT 05490
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Take exit 11 and turn right at W Main ST/ US RT 2. Turn slightly to the right, onto River Road/ VT Route 117. In about 260', turn right onto Governor Peck Highway and follow it to the end. At the stop sign, turn left onto Browns Trace Road and follow it to the end (about 5.3 miles). At stop sign, turn right onto Route 15 for 1/2 mile. Turn right onto River Road. Continue onto Pleasant Valley Road (2.7 miles). Turn right onto Mountain Road and follow for 3 miles to end.
Take exit 19. VT Route 104 East joins VT Route 15 East in Cambridge. At the Shell gas station, turn right onto Lower Pleasant Valley Road. After 8 - 10 miles, look for the state park sign and turn left onto Mountain Road. Continue 3 miles to the end of road.
Underhill is within Vermont's 39,837-acre Mt. Mansfield State Forest. On the headwaters of the Brown's River, at about 2,000 feet elevation, the park lies on the west slope of 4,300 feet Mt. Mansfield, the state's highest peak. Just over the summit ridge is the Stowe ski area, one of North America's original ski resorts.
The elevation and corresponding exposure to harsh climatic conditions have resulted in some relatively unusual vegetation types along the mountain's summit ridge. The low, stunted-plants found in the alpine tundra near the summit, very rare in New England, are more typical of types found on broad expanses of Arctic tundra a thousand miles farther north. These plants are fragile (if you hike to the summit, please stay on marked trails).
The park is probably best known for its hiking. There are four trails to the summit ridge of Mt. Mansfield from Underhill State Park. Walking up the gated road from the park headquarters, the trails begin branching off shortly above the group camp area. The Sunset Ridge Trail, 3 miles to the summit, is the most popular. Vermont’s Long Trail traverses the summit ridge and, with several trails from the other side of the mountain, many loops are possible. Hiking information and trail maps are available at the park headquarters.
Facilities / Amenities
The upper camp area, about 3/4 of a mile above the ranger station, has 7 lean-to sites and 2 tent sites and is reserved for organized group-use. In the lower camp area, around the contact station, are 11 tent sites and 6 lean-to sites. There is cold water and flush toilets in the restrooms, but there are no showers.
Campsites are not suitable for RV or tent-trailer campers. All campsites are walk-in and the parking area is narrow, making maneuvering large RVs very difficult.
The park also has a CCC-built picnic pavilion that can be rented. The pavilion seats up to 50 people and has picnic tables and a fireplace. The pavilion does not have electricity and does not meet ADA accessibility due to site constraints, but is nearby to restrooms. The cost is $100 to rent (Fri - Sun) and FREE Mon - Thu (except holidays).
Off-season access: The park gate remains open after park closes until the first snowfall. Once it snows, the gate is closed until there is sufficient snowfall to ski into the park, then it is reopened until spring melt.