Besek Mountain also known as Black Mountain, est. 840 feet (260 m), is a traprock mountain ridge located 4.75 miles (7.6 km) southeast of Meriden, 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. Besek Mountain is known for its 3-mile (4.8 km) long line of open cliffs, unique microclimate ecosystems, and rare plant communities.