[2] Sugarloaf Hill is part of a ridge running northeast and southwest close to the east shore of the Hudson.

The peak of Castle Rock lies off the northeast end of the ridge, while NY 9D runs along the west side.

A red-blazed trail climbs its western side, and then runs along the ridge, across the summit, to end at a viewpoint over the Hudson of about 700 feet (210 m) elevation.

[3] Somewhat unusually, Opuntia humifusa, Eastern prickly-pear cactus, can be found growing on ledges atop Sugarloaf Hill.

It was at Beverley that Arnold learned of the capture of John André and the failure of his treason, and fled thence to HMS Vulture.