Deepest lakes & reservoirs in Maine by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display fewer lakes than the total 59 articles we have published for Maine lakes.
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Below are lakes within USA > US New England Region > Maine > Compared by maximum depth in feet. This list does not represent all lakes in Maine, only the 59 Maine lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Cobbossee Lake, ME (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
97 ft | Also known as Lake Cobbosee, Cobbosseecontee Lake Cobbossee Lake is a treasured family vacation destination with over 62 miles of shoreline, dotted with many islands, and valued as one of the best lak … |
| Swan Lake ME (Maine, Mid-Coast Region, ME, US New England Region, USA) |
87 ft | Surrounded by fishing camps, cabins and vacation rentals, and just a few miles from Belfast Bay and the coast, Swan Lake is a fantastic mid-coast Main … |
| Millinocket Lake (Maine, Maine Highlands Region, ME, US New England Region, USA) |
86 ft | Nestled within the Maine Highlands tourism region, Millinocket Lake is known for its stunning views of Mount Katahdin, the tallest mountain peak in Ma … |
| Lake Wassookeag (Maine, Maine Highlands Region, ME, US New England Region, USA) |
86 ft | Also known as Dexter Pond Lake Wassookeag, also known as Dexter Pond, spans 1,030 acres in the Maine Highlands tourism region, about 40 miles northwest of Bangor. Its name is d … |
| China Lake (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
85 ft | China Lake is less than 20 miles northwest of Augusta, Maine’s state capital. This natural freshwater glacial lake rests in Kennebec County in southwe … |
| Mousam Lake, ME (Maine, Southern Coast Region, ME, US New England Region, USA) |
82 ft | Also known as Upper Mousam Lake, Lower Mousam Lake, and Lake Mousam The loons are calling you to the restful waters of Mousam Lake, a picture-perfect retreat nestled among southern Maine’s piney woods. Just 85 miles fr … |
| Umbagog Lake, ME/NH (Great North Woods Region, NH, Lakes & Mountains Region, ME, Maine, New Hampshire, US New England Region, USA) |
75 ft | Also known as Rangeley Lakes Umbagog Lake straddles about 11 miles of the Maine-New Hampshire border. This 7,850-acre lake lies partly in the Rangeley Lakes region of western Main … |
| Great Pond, ME (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
69 ft | Also known as Belgrade Lakes Great Pond, in Maine’s Kennebec and Moose River Valleys Region, is the largest of seven lakes in the Belgrade Lakes Chain. These seven lakes are part … |
| Highland Lake (Westbook) (Greater Portland & Casco Bay Region, ME, Maine, US New England Region, USA) |
67 ft | Also known as Duck Pond Located in the Portland-Casco Bay region of southern Maine, Highland Lake is well-used and well-loved. The 623-acre lake was originally called Duck Po … |
| Brassua Lake (Maine, Maine Highlands Region, ME, US New England Region, USA) |
65 ft | Also known as Little Brassua Lake-historic Sprawling across almost 9,000 acres of the Maine Highlands Region, Brassua Lake is actually little known. The large reservoir was created in 1925 when … |
| Bryant Lake, ME (Lakes & Mountains Region, ME, Maine, US New England Region, USA) |
63 ft | Also known as Lake Christopher, Bryant Pond Slowly, afternoon slips into evening and the light dims on Bryant Lake. Suddenly the still water is broken as trout leap, following the evening hatch … |
| Great Moose Lake, ME (Kennebec & Moose River Valleys Region, ME, Maine, US New England Region, USA) |
62 ft | Also known as Moose Pond Vacations are a time to sleep in. She knows that. She just can’t help herself. Mornings are so beautiful at Great Moose Lake she has been waking up ea … |