Largest lakes & reservoirs in Western Massachusetts by water volume
The estimated volume of water that a lake contains is measured at the lake’s normal elevation. By this measure, the world’s largest freshwater lake is Siberia’s Lake Baikal.Water Volume can be measured in acre-feet, in cubic miles, or in cubic kilometers. One acre-foot is the amount of water needed to cover one acre (43,560 square feet) to a depth of one foot. One cubic mile equals 3,379,200 acre-feet. One cubic kilometer equals 810,713 acre-feet. 1 acre-foot is equal to 325,851 US gallons. Siberia’s Lake Baikal contains about 6,276,367,740,000,000 gallons of freshwater – nearly 1 million gallons for every living person on earth.
The other – and more widely used – measure of a lake’s size is the lake’s surface acreage. By that measure, the world’s largest freshwater lake is North America’s Lake Superior.
Note: In the United States, an acre foot is a unit of volume used to refer to large-scale bodies of water. It is defined by the volume of water needed to cover 1 acre of surface area to a depth of 1 foot.
You can find many of the the world’s largest lakes (by water volume) on LakeLubbers. Note: For some lakes, the water volume data is unknown or does not apply, so you may see fewer lakes than the total 9 articles we have published for Western Massachusetts lakes.
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Below are lakes within USA > US New England Region > Massachusetts > Western Massachusetts > Compared by water volume. This list does not represent all lakes in Western Massachusetts, only the 9 Western Massachusetts lake articles we have published on the LakeLubbers website.
Lake name  |
Water vol. in ac-ft |
Lake description |
|---|---|---|
| Quabbin Reservoir (Massachusetts, US New England Region, USA, Western Massachusetts) |
1,264,380 ac-ft | One of the country’s largest man-made public water supplies, Quabbin Reservoir dominates the landscape in Western Massachusetts. Supplying much of the … |
| Colebrook River Lake, CT/MA (Connecticut, Litchfield Hills Region, CT, Massachusetts, US New England Region, USA, Western Massachusetts) |
43,778 ac-ft | (Also known as Colebrook River Reservoir) With over 800 acres of boating and fishing waters, with no residential development, Colebrook River Lake – straddling the Connecticut and Massachusett … |
| Otis Reservoir, MA (Massachusetts, US New England Region, USA, Western Massachusetts) |
17,188 ac-ft | (Also known as Otis Lake) She sits by herself on the dock at Otis Reservoir; the coffee steaming in her mug mirrors the mist coming off the water of the lake. Her husband left … |
| Ashmere Lake (Massachusetts, US New England Region, USA, Western Massachusetts) |
2,076 ac-ft | Ashmere Lake is a small, quiet lake tucked away in western Massachusetts. The 217-acre lake is surrounded by beautiful rural countryside in the towns … |