Michigan lake depth maps
Bruin Lake depth map
Bruin Lake in Washtenaw County, Michigan reaches a depth of 48 feet. Bruin Lake is charted here across 8 closed depth contours, from the 5 ft line down to 45 ft, enclosing about 59 acres of water. Half of that water lies inside the 30 ft line, and only 1.8 acres lie inside the deepest one. Every contour is on the interactive map below, free and without an account.
Data: Michigan DNR Inland Lake Contours (public record). Contours closed, checked and area-computed by Jordan Carter, founder of GilledIt · page updated
Bruin Lake depth chart: 8 depth contours from 5 to 45 ft
Data: Michigan DNR Inland Lake Contours (public record), retrieved August 2026 · depths change over time · not for navigation
| Depth contour | Water inside it | Share of mapped water |
|---|---|---|
| 5 ft | 59 acres | 100% |
| 15 ft | 57 acres | 97% |
| 20 ft | 48 acres | 81% |
| 25 ft | 31 acres | 53% |
| 30 ft | 19 acres | 32% |
| 35 ft | 12 acres | 20% |
| 40 ft | 7.4 acres | 12% |
| 45 ft | 1.8 acres | 3% |
Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 59 acres inside the outermost charted contour (the 5 ft line), which is the outer edge of the mapped water, several state files carry no 0 ft shoreline line, so this is not the same as a share of the lake's published surface area. The survey also records a 48 ft sounding, marked as a point rather than a closed contour, so it is not charted as a band.
Fishing Bruin Lake: steep sides for its size
About 59 acres of Bruin Lake sit inside the survey's 5 ft contour, and half of that water is already gone by the 30 ft line: depth comes quickly here, with no long shallow margin before the bottom drops away. The steepest break on the chart runs from 20 down to 25 ft: 17 acres of bottom fall away across 5 ft there, which makes that band the first contour to work. The deepest 45 ft contour holds 1.8 acres, 3% of the mapped water, toward the western side of the lake. Nothing here reaches a true cold-water layer at 48 ft, so structure does the thermocline's work: the points and inside turns where the 20 and 25 ft lines pinch together fish hardest in early season, and again as fish follow bait back down in autumn.
Ice fishing on Bruin Lake
At 48 ft, Bruin Lake is a workable ice depth: deep enough to hold fish all winter without the slow freeze-up of a big basin. Start on the 45 ft hole, 1.8 acres of it, at first light, then move up onto the 20–25 ft break as the sun gets up, and fish the flats inside the 30 ft line through the middle of the day. Check ice thickness locally before you walk out.
Bruin Lake depth map FAQs
- How deep is Bruin Lake?
- Bruin Lake reaches a maximum depth of 48 feet in the Michigan DNR Inland Lake Contours survey. Most of it is far shallower: the survey charts 8 closed depth contours over about 59 acres, and half of that water sits inside the 30 ft line. The 48 ft figure is a single recorded sounding rather than a closed contour, so the deepest line you can actually trace on the map is 45 ft.
- Where is the deepest part of Bruin Lake?
- The deepest charted water on Bruin Lake lies inside the 45 ft contour, toward the western side of the lake. That contour encloses 1.8 acres, 3% of the mapped water, so it is a small target on a small water, the depth chart above gives the contour to line up on.
- How much of Bruin Lake is shallower than 30 feet?
- About half. The 30 ft contour encloses 19 acres of the roughly 59 acres inside the outer 5 ft line, so the other half of the water is shallower than 30 feet. The sharpest drop is between 20 and 25 feet, where the mapped water sheds 17 acres.
- How accurate is this Bruin Lake depth map?
- The contours come from the Michigan DNR Inland Lake Contours survey, retrieved August 2026 and last rebuilt on August 19, 2026. 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. Acreages are computed from the published contour geometry, not from a separate area survey, so read them as close approximations.
Depth maps for lakes near Bruin Lake
- Halfmoon Lake depth map · 87 ft max · 1 mi away
- South Lake depth map · 88 ft max · 2 mi away
- Pickerel Lake depth map · 56 ft max · 3 mi away
- Silver Lake depth map · 47+ ft max · 4 mi away
- Bass Lake depth map · 73 ft max · 9 mi away
Mapped fishing venues near Bruin Lake
Bruin Lake in the venue directory covers access and fishing details for this water.
- Halfmoon Lake · 1 mi away
- South Lake · 2 mi away
- Pickerel Lake · 3 mi away
Fishing in Michigan needs a state license: Michigan fishing license guide · all Michigan venues