Mount Washington State Park is a 60.3-acre (24.4 ha) parcel perched on the summit of Mount Washington, New Hampshire, the highest peak in the northeastern United States. Summer seasonal amenities include a cafeteria, restrooms, gift shops, the Mount Washington Observatory and its museum. The historic Tip Top House is located adjacent to the summit building and is open to visitors from early May to early October. The park is accessible by the Mount Washington Auto Road, the Mount Washington Cog Railway, the Appalachian Trail, or numerous other hiking trails from surrounding trailheads including Pinkham Notch, Crawford Notch and the Cog Railway base station.