Upper Wolfjaw Mountain stands within the watershed of the East Branch of the Ausable River, which drains into Lake Champlain, thence into Canada's Richelieu River, the Saint Lawrence River, and into the Gulf of Saint Lawrence.
The east and southeast sides of Upper Wolfjaw Mtn. drain into the East Branch of the Ausable River.
The west side of Upper Wolfjaw drains into Ore Body Brook, thence into Johns Brook and the East Branch.
The north side of Upper Wolfjaw drains into Wolfjaw Brook, thence into Johns Brook.
