How deep is Otter Lake?

Otter Lake is more than 117 feet deep. The deepest contour in the Michigan DNR Inland Lake Contours survey is the 117 foot line, and the lake continues deeper inside it, with 11 depth bands mapped in total.

Where is the deepest part of Otter Lake?

The deepest surveyed water on Otter Lake sits toward the southeastern corner of the lake, inside the 117 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.

How accurate is this Otter 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

Otter Lake depth map

Otter Lake in Lapeer County, Michigan reaches a depth of more than 117 feet at its deepest surveyed contour. The official Michigan survey maps 11 depth bands across 21 contour lines. This free map of Otter Lake shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.

Otter Lake depth chart: 11 depth bands to 117+ ft

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

Otter Lake depth chart data
Depth contour	Share of mapped area inside it
5 ft	about 100%
10 ft	about 36%
20 ft	about 26%
30 ft	about 17%
40 ft	about 13%
50 ft	about 8%
70 ft	about 4%
100 ft	about 2%

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

How to fish Otter Lake: deep, two-story water

At 117 feet, this is a two-story fishery: warm-water species work the shallows and weed edges while the deep basin can hold cold-water fish below the summer thermocline. In summer, target the transition where the bottom breaks from the shallow shelf toward the basin; fish suspend along that edge at dawn and dusk. The 11 mapped depth bands make it straightforward to find those breaks before you launch.

Ice fishing on Otter Lake

On deep water like Otter Lake, the winter bite concentrates along the first major drop-off rather than the deepest basin. Use the contours above to find where the shallow shelf breaks toward deep water and set up on that edge; panfish and walleye slide up and down it through the day. Late ice often pushes fish shallower again. Always verify ice thickness locally before walking out, and remember deep lakes freeze later and less evenly than shallow ones.

Otter Lake depth map FAQs

How deep is Otter Lake?: Otter Lake is more than 117 feet deep. The deepest contour in the Michigan DNR Inland Lake Contours survey is the 117 foot line, and the lake continues deeper inside it, with 11 depth bands mapped in total.
Where is the deepest part of Otter Lake?: The deepest surveyed water on Otter Lake sits toward the southeastern corner of the lake, inside the 117 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
How accurate is this Otter 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 Otter Lake

Big Fish Lake depth map · 60+ ft max · 23 mi away
Lake Fenton depth map · 90+ ft max · 29 mi away
Dickinson Lake depth map · 68 ft max · 30 mi away
Lakeville Lake depth map · 66 ft max · 31 mi away
Lake Orion depth map · 80 ft max · 32 mi away

Mapped fishing venues near Otter Lake

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

"The Gravel Pit" · 14 mi away
Big Fish Lake · 23 mi away

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