Harriman Reservoir, also known as Lake Whitingham, is the largest body of water located entirely within the state of Vermont. Enjoyed by boaters, swimmers, paddlers, and fishermen, the reservoir extends about 10 miles from Wilmington to Whitingham in southern Vermont.

The scenic reservoir is owned by TransCanada and is a source of hydroelectricity. Originally developed by the New England Power Company in 1922 to 1923, the reservoir flooded the former pulpwood and lumber village of Mountain Mills, located just outside of Wilmington.  When water levels are low, you can occasionally spot submerged tree stumps and foundations from Mountain Mills.

Lake Description excerpt from Massachusetts Paddler - DF6

https://massachusettspaddler.com/df6-harriman-reservoir

For additional lake information, including a map of the reservoir, click below.

https://www.greatriverhydro.com/wp-content/uploads/2021/09/Harriman.pdf

Statistics:

Area: 2,039 Acres

Max Depth: 185 Feet

Average Depth: 16 Feet

The lake is open for public access from Dawn to Dusk - (Gated Areas are 8:00am - 9:30pm). Gated areas are patrolled by local police during off hours.

For more specific information regarding the rules and regulations, please click the below link which will direct you to Great River Hydro