Gray Knob Gray Knob is 1.2 miles west of Thunderstorm Junction via Lowe's Path in the Northern Presidentals (near Mt Adams). It is listed in the A.T. Data Book. Its distance from the trail doesn't make it a favorite among thru hikers but if caught in dangerous weather above treeline it will offer you protection. This Randolph Mountain Club Cabin is manned by a year round caretaker. Go to www.randolphmountainclub.org for information on fees and accomodations. July 2003.