Deepest lakes & reservoirs in Thousand Islands Region, NY 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 7 articles we have published for Thousand Islands Region, NY lakes.
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Use our free interactive vacation rental map to search and compare multiple vacation properties at a glance. Enter a lake name, a state or city and then simply click on a listing to compare all similar properties, best rates and availability for your dates.Search results: Sort lakes by max depth (feet)
Below are lakes within USA > US Mid-Atlantic Region > New York > Thousand Islands Region, NY > Compared by maximum depth in feet. This list does not represent all lakes in Thousand Islands Region, NY, only the 7 Thousand Islands Region, NY lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Lake Ontario (Canada, Finger Lakes Region, NY, Great Lakes of North America, Greater Niagara Region, NY, New York, Ontario, Canada, Thousand Islands Region, NY, US Mid-Atlantic Region, USA) |
802 ft | Lake Ontario, one of the world’s five Great Lakes, weaves over state and country borders, delighting Americans, Canadians, and visiting tourists with… |
| Sylvia Lake (Adirondacks Region, NY, New York, Thousand Islands Region, NY, US Mid-Atlantic Region, USA) |
140 ft | Also known as Lake Killarney (historical) Tucked neatly away on the border between New York’s Adirondack and Thousand Islands regions, Sylvia Lake is the perfect Northern New York location for… |
| Oneida Lake, NY (Central-Leatherstocking Region, NY, Finger Lakes Region, NY, New York, Thousand Islands Region, NY, US Mid-Atlantic Region, USA) |
55 ft | Covering more than 51,000 acres, Oneida Lake is the largest lake located entirely within the state of New York. Named after the Iroquois Nation Oneida… |
| Black Lake NY (New York, Thousand Islands Region, NY, US Mid-Atlantic Region, USA) |
40 ft | Known as the best fishing destination in the 1000 Islands Region of upstate New York, Black Lake has been drawing anglers and vacationers to its shore… |
| Autumn Lake (New York, Thousand Islands Region, NY, US Mid-Atlantic Region, USA) |
20 ft | Autumn Lake is a beautiful 8-acre private lake in Orwell, New York, just a few miles east of Pulaski in Oswego County. The secluded lake offers a peac… |
| Crystal Lake, NY (New York, Thousand Islands Region, NY, US Mid-Atlantic Region, USA) |
20 ft | Also known as Sixtown Pond, Little Stony Creek Pond Nestled in quiet corner of Jefferson County, New York is a peaceful lake known by three names: Crystal Lake, Little Stony Creek Pond, and Sixtown Pond… |