Pinnacle Rock, 600 feet (180 m), is a traprock mountain peak located 10 miles (16 km) southwest of Hartford, Connecticut in the towns of Farmington and Plainville. It is part of the narrow, linear Metacomet Ridge that extends from Long Island Sound near New Haven, Connecticut, north through the Connecticut River Valley of Massachusetts to the Vermont border. Pinnacle Rock, popular as an outdoor recreation destination in the metropolitan Hartford area, is known for its clifftop scenic vistas, unique microclimate ecosystems, rare plant communities, and as a seasonal raptor migration path. Pinnacle Rock is traversed by the 51-mile (82 km) Metacomet Trail.