The Metacomet Ridge continues north from Totoket Mountain as Pistapaug Mountain and south as Saltonstall Mountain. An outlying peak, Peter's Rock, lies to the west of Totoket Mountain. The west side of Totoket Mountain drains into the Farm River, thence to the East Haven River and Long Island Sound; the south side into the Branford River and Long Island Sound, the east side into West River and Long Island Sound, and the north side into Parmalee Brook, then to the Coginchaug River, thence to the Connecticut River and Long Island Sound.