[3] Hadley Mountain is a popular hike which, though short in distance at 1.8 miles (2.9 km), achieves a sharp elevation gain of 1525 ft.

The summit offers outstanding views of the Southern Adirondack Mountains and especially the Great Sacandaga Lake.

Crossing back and forth over a small creek (dry in summer), the trail continues steeply past interesting boulders and cliffs to a level shoulder at about 1 mile (1.6 km).

The tower was decommissioned in 1990 as the forest service shifted to a combination of aerial surveillance and reporting by local citizens.

The tower was restored by volunteers in 1996, and may be staffed in summer months by a steward who will answer questions from hikers.