 Mizpah Spring Hut () was originally built in 1964, and although there are newer buildings in the system, this makes Mizpah the newest hut site in the system.The building is designed to withstand winds and was built with materials brought in by helicopter.The highest and largest hut in the system, Lakes of the Clouds Hut () started as a shelter built in 1901 in response to the deaths in the previous year of two hikers caught in a storm on their way to an AMC meeting atop Mount Washington.