Waumbek is flanked to the northeast by Mount Weeks, to the west by Mount Starr King, and to the southeast by Pliny Mountain (1099 m). Waumbek is drained by various brooks into the Israel River, and thence into the Connecticut River and Long Island Sound.
Waumbek is bordered by Mount Weeks to the northeast, Mount Starr King to the west, and Pliny Mountain to the southeast (1099 meters). Waumbek's drainage system involves various streams that flow into the Israel River, which then joins the Connecticut River and Long Island Sound.