Parc d'État de Skinner - Skinner Park Road

Joseph Allen Skinner State Park is a state-owned, public recreation area located in the towns of Hadley and South Hadley in the Connecticut River Valley of western Massachusetts. The state park surrounds Mount Holyoke, the westernmost peak of the Mount Holyoke Range. At the summit is the historic Prospect House, an old hotel first opened in 1851.

Mount Holyoke, a traprock mountain, elevation 935 feet (285 m), is the western-most peak of the Holyoke Range and part of the 100-mile (160 km) Metacomet Ridge. The mountain is located in the Connecticut River Valley of western Massachusetts, and is the namesake of nearby Mount Holyoke College. The mountain is located in the towns of Hadley and South Hadley, Massachusetts.