The Belgrade Lakes watershed is located in central Maine, just north of our capital city Augusta. This watershed is made up of many streams, wetlands, tributaries, and of course the seven lakes: East Pond, North Pond, McGrath Pond, Salmon Lake, Great Pond, Long Pond and Messalonskee Lake. Water that enters this watershed eventually flows out of Messalonskee Stream and into the Kennebec River, which leads to the ocean.
Lakes of the Belgrade Lakes Watershed
North Pond
North Pond: 2,225 acres, maximum depth of 20 feet
East Pond
East Pond: 1,123 acres, maximum depth of 27 feet
McGrath Pond
McGrath Pond: 286 acres, maximum depth of 27 feet
Salmon Lake
Salmon Lake: 666 acres, maximum depth of 57 feet
Great Pond
Great Pond: 8,239 acres, maximum depth of 69 feet
Long Pond
Long Pond: 2,714 acres, maximum depth of 106 feet
Messalonskee Lake
Messalonskee Lake: 5,510 acres, maximum depth of 113 feet
Lake Monitoring Update
In between crunching data and running water samples in the chemistry lab at Colby College, the Lake Science team continues to visit monitoring sites to collect under-ice data on all seven lakes.
Ice is never 100% safe. Measurements in the chart are specific to designated monitoring stations. Data reported February 18, 2026.
Posted, February 20, 2026