Vermont State Parks - Underhill State ParkUnderhill State Park : Located in Underhill: Underhill State Park PO Box 249 Underhill Center, Vermont 05490 Park Phone: 802-899-3022. Open for day use:
Underhill, Vermont, New England, USAInformation about Underhill, Vermont ... About Underhill, Vermont . Chittenden County Chartered: June 8, 1763 (New Hampshire Grant)