How deep is Cooley Lake?

Cooley Lake reaches a maximum depth of 56 feet, according to the Michigan DNR Inland Lake Contours survey. Most of the lake is shallower, with 12 mapped depth bands between the shoreline and the deepest hole.

Where is the deepest part of Cooley Lake?

The deepest surveyed water on Cooley Lake sits toward the southeastern corner of the lake, inside the 56 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.

How accurate is this Cooley Lake depth map?

The contours come from the Michigan DNR Inland Lake Contours survey. Depths change over time with water levels and sediment, so treat this map as a planning guide for fishing, and never use it for navigation.

Michigan lake depth maps

Cooley Lake depth map

Cooley Lake in Oakland County, Michigan reaches a depth of 56 feet. The official Michigan survey maps 12 depth bands across 30 contour lines. This free map of Cooley Lake shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.

Cooley Lake depth chart: 12 depth bands to 56 ft

Data: Michigan DNR Inland Lake Contours (public record), retrieved August 2026 · depths change over time · not for navigation

Cooley Lake depth chart data
Depth contour	Share of mapped area inside it
5 ft	about 6%
10 ft	about 3%
15 ft	about 2%
20 ft	about 2%
56 ft	under 1%

Share of the surveyed surface area enclosed by each depth contour, computed from the Michigan DNR Inland Lake Contours data.

How to fish Cooley Lake: mid-depth structure water

With 56 feet at its deepest, the fish-holding structure is the mid-depth contour: drop-offs, points and inside turns between the shallows and the basin. Use the 12 mapped depth bands to find where contour lines pinch together, which marks the sharpest breaks, and work those edges first, especially early season and again in the fall as fish follow bait between depths.

Ice fishing on Cooley Lake

Cooley Lake is a classic ice-fishing depth: enough water to hold fish all winter without the long freeze-up of a deep basin. Start on the deepest mapped hole at first light, then work the breaks where contour lines tighten. Mid-depth flats near the basin edge produce through midday. Always verify ice thickness locally before walking out.

Cooley Lake depth map FAQs

How deep is Cooley Lake?: Cooley Lake reaches a maximum depth of 56 feet, according to the Michigan DNR Inland Lake Contours survey. Most of the lake is shallower, with 12 mapped depth bands between the shoreline and the deepest hole.
Where is the deepest part of Cooley Lake?: The deepest surveyed water on Cooley Lake sits toward the southeastern corner of the lake, inside the 56 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
How accurate is this Cooley Lake depth map?: The contours come from the Michigan DNR Inland Lake Contours survey. Depths change over time with water levels and sediment, so treat this map as a planning guide for fishing, and never use it for navigation.

Depth maps for lakes near Cooley Lake

Union Lake depth map · 110 ft max · 1 mi away
Cedar Island Lake depth map · 72 ft max · 2 mi away
Oxbow Lake depth map · 72+ ft max · 2 mi away
Green Lake depth map · 72 ft max · 3 mi away
Middle Straits Lake depth map · 55 ft max · 3 mi away

Mapped fishing venues near Cooley Lake

Cooley Lake in the venue directory covers access and fishing details for this water.

Union Lake · 1 mi away
Cedar Island Lake · 2 mi away
Oxbow Lake · 2 mi away

Fishing in Michigan needs a state license: Michigan fishing license guide · all Michigan venues