Open by special arrangement only from about mid-June to mid-October (weather and snow permitting). The summit hut, 8 km (5 miles) north of Barcroft Station, was constructed in 1955 on White Mountain Peak at 4342 m
(14,242’). This two-room stone building provides living quarters for up to 4 people and laboratory space for the study of high-altitude physiology, astronomy, and cosmic radiation. The summit hut is supplied from Barcroft station, about a 30-45 minute drive away. Vehicular access is by permission only and 4x4 with high clearance is essential. A snowfield usually blocks the final switchbacks just below the summit lab.