Summer seasonal amenities include a cafeteria, restrooms, gift shops, the Mount Washington Observatory and its museum.

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.

The land forming the park was originally given to Dartmouth College in 1951 by the estate of the owner of the Cog Railway.

After funds ran out in 1856, the current Mount Washington Summit Road Company completed building it in 1859.

In 1908 a major fire destroyed all of the buildings but one — the Tip Top House.