How deep is Big Lake?

Big Lake reaches a maximum depth of 34 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 Big Lake?

The deepest surveyed water on Big Lake sits toward the northwestern corner of the lake, inside the 34 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.

How accurate is this Big 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

Big Lake depth map

Big Lake in Baraga County, Michigan reaches a depth of 34 feet. The official Michigan survey maps 15 depth bands across 32 contour lines. This free map of Big Lake shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.

Big Lake depth chart: 15 depth bands to 34 ft

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

Big Lake depth chart data
Depth contour	Share of mapped area inside it
5 ft	about 100%
10 ft	about 28%
15 ft	about 9%
20 ft	about 5%
25 ft	about 4%
30 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 Big Lake: mid-depth structure water

With 34 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 15 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 Big Lake

Big 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.

Big Lake depth map FAQs

How deep is Big Lake?: Big Lake reaches a maximum depth of 34 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 Big Lake?: The deepest surveyed water on Big Lake sits toward the northwestern corner of the lake, inside the 34 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
How accurate is this Big 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 Big Lake

Pequet Lake depth map · 60 ft max · 8 mi away
Prickett Lake depth map · 56+ ft max · 8 mi away
Markey Lake depth map · 65 ft max · 10 mi away
Emily Lake depth map · 90 ft max · 22 mi away
Lake Alice depth map · 51 ft max · 24 mi away

Mapped fishing venues near Big Lake

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

Pequet Lake · 8 mi away
Prickett Lake · 8 mi away
Markey Lake · 10 mi away

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