West Suffield Mountain, est. 710 feet (220 m), is a traprock mountain ridge located between the Berkshires and the Connecticut River Valley in north-central Connecticut. 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. West Suffield Mountain is known for its scenic ledges and woodlands, unique microclimate ecosystems, and rare plant communities.