Doubletop is closed to all public access, and it must not be climbed. The summit is private land owned by the Gould family, who long tolerated hikers. The landowners closed the summits of Doubletop and Graham to all public access in January 2021, citing the ecological toll of rising use on these trailless mountains. The Catskill 3500 Club closed it effective January 13, 2021, and its required list went from 35 to 33 peaks. Trespassers risk enforcement, including arrest.
Before the closure, Doubletop had a reputation as a hard, trailless climb with twin summits, the canister sitting on the higher north one. Hidden cliff bands that the contour lines do not show, plus briars and thick underbrush in summer, made it a compass-and-GPS mountain. Hikers also reported the wreck of a two-engine plane near the top.
The peak stands between Graham Mountain to the northwest and Big Indian Mountain to the east, with the Beaver Kill Range to the southwest, and its waters reach the Delaware basin through Dry Brook, the Beaver Kill, and the Neversink. Legal alternatives are the marked trails on state land nearby. Big Indian, reached on the Pine Hill-West Branch Trail, gives a taste of the same country without any question about permission. Respect the posted boundary and treat this one as a mountain to know about, not to visit.