How deep is Beaver Lake?

Beaver Lake is more than 70 feet deep. The deepest contour in the Michigan DNR Inland Lake Contours survey is the 70 foot line, and the lake continues deeper inside it.

Where is the deepest part of Beaver Lake?

The deepest charted water on Beaver Lake lies inside the 70 ft contour, toward the middle of the lake. That contour encloses 9.2 acres, 1.9% 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 Beaver Lake is shallower than 40 feet?

About half. The 40 ft contour encloses 235 acres of the roughly 475 acres inside the outer 10 ft line, so the other half of the water is shallower than 40 feet. The sharpest drop is between 30 and 40 feet, where the mapped water sheds 151 acres.

How accurate is this Beaver 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.

Michigan lake depth maps

Beaver Lake depth map

Beaver Lake in Alpena County, Michigan reaches a depth of more than 70 feet at its deepest surveyed contour. Beaver Lake is charted here across 6 closed depth contours, from the 10 ft line down to 70 ft, enclosing about 475 acres of water. Half of that water lies inside the 40 ft line, and only 9.2 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 August 19, 2026

Beaver Lake depth chart: 6 depth contours from 10 to 70 ft

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

Beaver Lake depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
10 ft	475 acres	100%
30 ft	386 acres	81%
40 ft	235 acres	50%
50 ft	142 acres	30%
60 ft	54 acres	12%
70 ft	9.2 acres	1.9%

Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 475 acres inside the outermost charted contour (the 10 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.

Fishing Beaver Lake: a stepped drop into deep water

About 475 acres of Beaver Lake sit inside the survey's 10 ft contour, and half of that water is already gone by the 40 ft line: the drop to the deep basin comes in stages, each contour giving up another slice of water, rather than in one abrupt wall. The steepest break on the chart runs from 30 down to 40 ft: 151 acres of bottom fall away across 10 ft there, which makes that band the first contour to work. The deepest 70 ft contour holds 9.2 acres, 1.9% of the mapped water, toward the middle of the lake. 70 ft of water makes this a two-story fishery: warm-water fish hold the 10-to-40 ft ground while the basin can stay cold below the summer thermocline, and the traffic between the two runs along the 30–40 ft break at first and last light.

Ice fishing on Beaver Lake

Beaver Lake freezes later and less evenly than the shallow waters around it, and the winter bite sets up on the first real break rather than out over the 70 ft hole. The 30–40 ft band on the chart above is that edge: 151 acres of bottom tilt away there, and panfish and walleye slide up and down it through the day. Late ice pushes fish back onto the 10-to-40 ft flat. Check ice thickness locally before you walk out.

Beaver Lake depth map FAQs

How deep is Beaver Lake?: Beaver Lake is more than 70 feet deep. The deepest contour in the Michigan DNR Inland Lake Contours survey is the 70 foot line, and the lake continues deeper inside it.
Where is the deepest part of Beaver Lake?: The deepest charted water on Beaver Lake lies inside the 70 ft contour, toward the middle of the lake. That contour encloses 9.2 acres, 1.9% 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 Beaver Lake is shallower than 40 feet?: About half. The 40 ft contour encloses 235 acres of the roughly 475 acres inside the outer 10 ft line, so the other half of the water is shallower than 40 feet. The sharpest drop is between 30 and 40 feet, where the mapped water sheds 151 acres.
How accurate is this Beaver 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 Beaver Lake

McCollum Lake depth map · 60 ft max · 12 mi away
Hubbard Lake depth map · 80+ ft max · 15 mi away
Long Lake depth map · 84 ft max · 15 mi away
Sage Lakes depth map · 36+ ft max · 17 mi away
Ninth Street Pond depth map · 23+ ft max · 19 mi away

Mapped fishing venues near Beaver Lake

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

McCollum Lake · 12 mi away
Hubbard Lake · 15 mi away
Long Lake · 15 mi away

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