Table Top Mountain is a mountain located in Essex County, New York. Table Top Mtn. is flanked to the north by Phelps Mountain, and to the south by Mount Marcy. Table Top has three summits; the southernmost is the highest, followed by the middle peak (1,312 m) and the north peak (1,285 m).
Table Top Mountain stands within the watershed 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 southwest end of Table Top Mtn. drains into Marcy Brook, and the West Branch of the Ausable River. The northwest side of Table Top Mtn. drains into Phelps Brook, thence into Marcy Brook. The north end of Table Top drains into Klondike Brook, thence into the Ausable's West Branch. The southeast side of Table Top drains into Johns Brook, thence into the East Branch of the Ausable River.