Michigan lake depth maps

Piatt Lake depth map

Piatt Lake in Chippewa County, Michigan reaches a depth of more than 60 feet at its deepest surveyed contour. The official Michigan survey maps 12 depth bands across 14 contour lines. This free map of Piatt Lake shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.

Piatt Lake depth chart: 12 depth bands to 60+ ft

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

Piatt Lake depth chart data
Depth contourShare of mapped area inside it
5 ftabout 100%
10 ftabout 37%
15 ftabout 25%
20 ftabout 16%
25 ftabout 9%
30 ftabout 7%
35 ftabout 5%
40 ftabout 3%
45 ftabout 2%
50 ftabout 1%
60 ftunder 1%

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

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

At 60 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 12 mapped depth bands make it straightforward to find those breaks before you launch.

Ice fishing on Piatt Lake

On deep water like Piatt 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.

Piatt Lake depth map FAQs

How deep is Piatt Lake?
Piatt Lake is more than 60 feet deep. The deepest contour in the Michigan DNR Inland Lake Contours survey is the 60 foot line, and the lake continues deeper inside it, with 12 depth bands mapped in total.
Where is the deepest part of Piatt Lake?
The deepest surveyed water on Piatt Lake sits toward the northwestern corner of the lake, inside the 60 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
How accurate is this Piatt 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 Piatt Lake

Mapped fishing venues near Piatt Lake

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

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