Ontario Lake Depths
Ontario · Simcoe County

Simcoe County lake depth maps

Explore 12 lakes as 3D depth maps, built from Ontario MNRF bathymetric surveys — surveyed depth draped over real elevation and aerial imagery.

Featured depth maps

3D depth map of Gloucester PoolLargest in Simcoe County, deepest mapped contourGloucester Pool27.4 m (90 ft) deep · 3,521 acresExplore the 3D map 3D depth map of Sparrow LakeSecond largestSparrow Lake12.2 m (40 ft) deep · 2,787 acresExplore the 3D map 3D depth map of Lake St. JohnThird largestLake St. John6.1 m (20 ft) deep · 1,624 acresExplore the 3D map

Where the lakes are

Gloucester Pool · 90 ft · 3,521 acSparrow Lake · 40 ft · 2,787 acLake St. John · 20 ft · 1,624 acBass Lake · 30 ft · 1,359 acLong Lake · 40 ft · 407 acMacLean Lake · 33 ft · 278 acTea Lake · 56 ft · 275 acFarlain Lake · 16 ft · 271 acHorseshoe Lake · 36 ft · 155 acEarl Rowe Lake · 10 ft · 86 acJacks Lake · 5 ft · 68 acKettle's Lake · 15 ft · 67 acGloucester PoolSparrow LakeLake St. John

Dot size and shade follow max depth: under 15 ft 100 ft and deeper

All 12 mapped lakes in Simcoe County; deepest is Gloucester Pool at 90 ft. Tap a dot to open that lake.