Mount Putnam is a mountain located on the border between Washington County and Lamoille County, Vermont, in the Putnam State Forest.

Mount Putnam stands within the watershed of the Winooski River, which drains into Lake Champlain, and ultimately into the Gulf of Saint Lawrence in Canada.

The north side of Mount Putnam drains into Gold Brook, thence into the Little River and the Winooski River.

Putnam drains into Thatcher Brook, and thence into the Winooski.

Putnam drains into Minister Brook, thence into the North Branch of the Winooski River.