Deepest lakes & reservoirs in Ontario 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 55 articles we have published for Ontario lakes.
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Search results: Sort lakes by max depth (feet)
Below are lakes within Canada > Ontario > Compared by maximum depth in feet. This list does not represent all lakes in Ontario, only the 55 Ontario lake articles we have published on the LakeLubbers website.