How deep is Shupac Lake?

Shupac Lake reaches a maximum depth of 97 feet in the Michigan DNR Inland Lake Contours survey. Most of it is far shallower: the survey charts 11 closed depth contours over about 93 acres, and half of that water sits inside the 40 ft line. The 97 ft figure is a single recorded sounding rather than a closed contour, so the deepest line you can actually trace on the map is 90 ft.

Where is the deepest part of Shupac Lake?

The deepest charted water on Shupac Lake lies inside the 90 ft contour, toward the southern end of the lake. That contour encloses 1.8 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 Shupac Lake is shallower than 40 feet?

About half. The 40 ft contour encloses 41 acres of the roughly 93 acres inside the outer 5 ft line, so the other half of the water is shallower than 40 feet. The sharpest drop is between 5 and 10 feet, where the mapped water sheds 20 acres.

How accurate is this Shupac 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

Shupac Lake depth map

Shupac Lake in Crawford County, Michigan reaches a depth of 97 feet. Shupac Lake is charted here across 11 closed depth contours, from the 5 ft line down to 90 ft, enclosing about 93 acres of water. Half of that water lies inside the 40 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 August 19, 2026

Shupac Lake depth chart: 11 depth contours from 5 to 90 ft

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

Shupac Lake depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
5 ft	93 acres	100%
10 ft	73 acres	79%
15 ft	65 acres	70%
20 ft	57 acres	62%
30 ft	51 acres	55%
40 ft	41 acres	45%
50 ft	30 acres	33%
60 ft	16 acres	18%
70 ft	9.2 acres	9.9%
80 ft	6.2 acres	6.7%
90 ft	1.8 acres	1.9%

Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 93 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 97 ft sounding, marked as a point rather than a closed contour, so it is not charted as a band.

Fishing Shupac Lake: a stepped drop into deep water

The survey encloses about 93 acres of Shupac Lake inside its 5 ft contour, and half of that water lies inside the 40 ft line, so the drop to the deep basin comes in stages, each contour giving up another slice of water, rather than in one abrupt wall. Between 5 and 10 ft the mapped water sheds 20 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 deepest 90 ft contour holds 1.8 acres, 1.9% of the mapped water, toward the southern end of the lake. 97 ft of water makes this a two-story fishery: warm-water fish hold the 5-to-40 ft ground while the basin can stay cold below the summer thermocline, and the traffic between the two runs along the 5–10 ft break at first and last light.

Ice fishing on Shupac Lake

Shupac 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 90 ft hole. The 5–10 ft band on the chart above is that edge: 20 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 5-to-40 ft flat. Check ice thickness locally before you walk out.

Shupac Lake depth map FAQs

How deep is Shupac Lake?: Shupac Lake reaches a maximum depth of 97 feet in the Michigan DNR Inland Lake Contours survey. Most of it is far shallower: the survey charts 11 closed depth contours over about 93 acres, and half of that water sits inside the 40 ft line. The 97 ft figure is a single recorded sounding rather than a closed contour, so the deepest line you can actually trace on the map is 90 ft.
Where is the deepest part of Shupac Lake?: The deepest charted water on Shupac Lake lies inside the 90 ft contour, toward the southern end of the lake. That contour encloses 1.8 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 Shupac Lake is shallower than 40 feet?: About half. The 40 ft contour encloses 41 acres of the roughly 93 acres inside the outer 5 ft line, so the other half of the water is shallower than 40 feet. The sharpest drop is between 5 and 10 feet, where the mapped water sheds 20 acres.
How accurate is this Shupac 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 Shupac Lake

Seventh Spectacle Lake depth map · 32 ft max · 6 mi away
Bridge Lake depth map · 87 ft max · 9 mi away
Tea Lake depth map · 70 ft max · 9 mi away
Big Chub Lake depth map · 74+ ft max · 9 mi away
Heart Lake depth map · 123 ft max · 12 mi away

Mapped fishing venues near Shupac Lake

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

Seventh Spectacle Lake · 6 mi away
Bridge Lake · 9 mi away
Tea Lake · 9 mi away

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