How deep is Bat Lake?

Bat Lake reaches a maximum depth of 70 feet, according to the Michigan DNR Inland Lake Contours survey. Most of the lake is shallower, with 15 mapped depth bands between the shoreline and the deepest hole.

Where is the deepest part of Bat Lake?

The deepest surveyed water on Bat Lake sits toward the middle of the lake, inside the 70 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.

How accurate is this Bat 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

Bat Lake depth map

Bat Lake in Marquette County, Michigan reaches a depth of 70 feet. The official Michigan survey maps 15 depth bands across 24 contour lines. This free map of Bat Lake shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.

Bat Lake depth chart: 15 depth bands to 70 ft

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

Bat Lake depth chart data
Depth contour	Share of mapped area inside it
5 ft	about 100%
10 ft	about 79%
15 ft	about 57%
20 ft	about 39%
25 ft	about 29%
30 ft	about 24%
35 ft	about 19%
40 ft	about 14%
45 ft	about 12%
50 ft	about 10%
55 ft	about 8%
60 ft	about 6%
65 ft	about 4%
70 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 Bat Lake: deep, two-story water

At 70 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 15 mapped depth bands make it straightforward to find those breaks before you launch.

Ice fishing on Bat Lake

On deep water like Bat 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.

Bat Lake depth map FAQs

How deep is Bat Lake?: Bat Lake reaches a maximum depth of 70 feet, according to the Michigan DNR Inland Lake Contours survey. Most of the lake is shallower, with 15 mapped depth bands between the shoreline and the deepest hole.
Where is the deepest part of Bat Lake?: The deepest surveyed water on Bat Lake sits toward the middle of the lake, inside the 70 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
How accurate is this Bat 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 Bat Lake

Witch Lake depth map · 95 ft max · 1 mi away
Squaw Lake depth map · 80 ft max · 2 mi away
Lake Michigamme depth map · 70 ft max · 16 mi away
Pickerel Lake depth map · 66 ft max · 17 mi away
Lake Angeline depth map · 162 ft max · 22 mi away

Mapped fishing venues near Bat Lake

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

Witch Lake · 1 mi away
Squaw Lake · 2 mi away
Lake Michigamme · 16 mi away

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