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Michigan lake depth maps

Witch Lake depth map

Witch Lake in Marquette County, Michigan reaches a depth of 95 feet. Witch Lake is charted here across 19 closed depth contours, from the 5 ft line down to 95 ft, enclosing about 204 acres of water. Half of that water lies inside the 30 ft line, and only under an acre 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

Witch Lake depth chart: 19 depth contours from 5 to 95 ft

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

Witch Lake depth chart data: water enclosed by each contour
Depth contourWater inside itShare of mapped water
5 ft204 acres100%
10 ft179 acres87%
15 ft150 acres74%
20 ft134 acres65%
25 ft115 acres56%
30 ft99 acres48%
35 ft61 acres30%
40 ft46 acres22%
45 ft38 acres19%
50 ft32 acres16%
55 ft27 acres13%
60 ft15 acres7.4%
65 ft10 acres5%
70 ft8.3 acres4%
75 ft6.5 acres3.2%
80 ft5 acres2.4%
85 ft2.8 acres1.3%
90 ft2.1 acres1%
95 ftunder 1 acreunder 1%

Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 204 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.

Fishing Witch Lake: a wide shallow flat over a deep hole

The survey encloses about 204 acres of Witch Lake inside its 5 ft contour, and half of that water lies inside the 30 ft line, so most of this Marquette County water is shallow and the depth is concentrated in one part of the basin. Between 30 and 35 ft the mapped water sheds 38 acres in 5 ft of depth, the sharpest change on the chart, start on that band, because it is where the bottom stops being flat. The 95 ft contour, toward the northeastern corner of the lake, encloses under an acre of water, a single pocket rather than a basin, but one worth a drift over in high summer. At 95 ft this is two-story water: the basin can stay cold below the summer thermocline while warm-water fish stay up on the 5-to-30 ft ground, and the fish that move between the two do it along the 30–35 ft break at first and last light.

Ice fishing on Witch Lake

Deep water like Witch Lake freezes later and less evenly than the shallow lakes around it, and the winter bite sets up on the first real break, not out over the 95 ft hole. That edge is the 30–35 ft band on the chart above, where 38 acres of bottom tilt away, and panfish and walleye work up and down it through the day. By late ice the fish push back onto the 5-to-30 ft flat. Check ice thickness locally before you walk out.

Witch Lake depth map FAQs

How deep is Witch Lake?
Witch Lake reaches a maximum depth of 95 feet in the Michigan DNR Inland Lake Contours survey. Most of it is far shallower: the survey charts 19 closed depth contours over about 204 acres, and half of that water sits inside the 30 ft line.
Where is the deepest part of Witch Lake?
The deepest charted water on Witch Lake lies inside the 95 ft contour, toward the northeastern corner of the lake. That contour encloses under an acre, under 1% 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 Witch Lake is shallower than 30 feet?
About half. The 30 ft contour encloses 99 acres of the roughly 204 acres inside the outer 5 ft line, so the other half of the water is shallower than 30 feet. The sharpest drop is between 30 and 35 feet, where the mapped water sheds 38 acres.
How accurate is this Witch 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 Witch Lake

Mapped fishing venues near Witch Lake

Witch 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