How deep is Goguac Lake?

Goguac Lake is more than 60 feet deep. The deepest contour in the Michigan DNR Inland Lake Contours survey is the 60 foot line, and the lake continues deeper inside it.

Where is the deepest part of Goguac Lake?

The deepest charted water on Goguac Lake lies inside the 60 ft contour, toward the southern end of the lake. That contour encloses 15 acres, 11% 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 Goguac Lake is shallower than 40 feet?

About half. The 40 ft contour encloses 53 acres of the roughly 138 acres inside the outer 5 ft line, so the other half of the water is shallower than 40 feet. The sharpest drop is between 15 and 20 feet, where the mapped water sheds 17 acres.

How accurate is this Goguac 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

Goguac Lake depth map

Goguac Lake in Calhoun County, Michigan reaches a depth of more than 60 feet at its deepest surveyed contour. Goguac Lake is charted here across 7 closed depth contours, from the 5 ft line down to 60 ft, enclosing about 138 acres of water. Half of that water lies inside the 40 ft line, and only 15 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

Goguac Lake depth chart: 7 depth contours from 5 to 60 ft

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

Goguac Lake depth chart data: water enclosed by each contour
Depth contour	Water inside it	Share of mapped water
5 ft	138 acres	100%
15 ft	132 acres	95%
20 ft	115 acres	83%
30 ft	84 acres	61%
40 ft	53 acres	38%
50 ft	30 acres	22%
60 ft	15 acres	11%

Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 138 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 Goguac Lake: steep walls and a big basin

Inside its outermost 5 ft contour the survey charts about 138 acres of Goguac Lake, with the 40 ft line enclosing half of it, so depth comes quickly here, with no long shallow margin before the bottom drops away. The sharpest change on the chart is between 15 and 20 ft, where the mapped water loses 17 acres in 5 ft of depth, that band is the contour to work first, because it is where the bottom stops being flat. The deepest 60 ft contour holds 15 acres, 11% of the mapped water, toward the southern end of the lake. 60 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 15–20 ft break at first and last light.

Ice fishing on Goguac Lake

Goguac 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 60 ft hole. The 15–20 ft band on the chart above is that edge: 17 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.

Goguac Lake depth map FAQs

How deep is Goguac Lake?: Goguac Lake is more than 60 feet deep. The deepest contour in the Michigan DNR Inland Lake Contours survey is the 60 foot line, and the lake continues deeper inside it.
Where is the deepest part of Goguac Lake?: The deepest charted water on Goguac Lake lies inside the 60 ft contour, toward the southern end of the lake. That contour encloses 15 acres, 11% 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 Goguac Lake is shallower than 40 feet?: About half. The 40 ft contour encloses 53 acres of the roughly 138 acres inside the outer 5 ft line, so the other half of the water is shallower than 40 feet. The sharpest drop is between 15 and 20 feet, where the mapped water sheds 17 acres.
How accurate is this Goguac 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 Goguac Lake

Gull Lake depth map · 110 ft max · 13 mi away
Indian Lake depth map · 75+ ft max · 17 mi away
Wilkinson Lake depth map · 45+ ft max · 20 mi away
Pine Lake depth map · 34+ ft max · 21 mi away
Gun Lake depth map · 68 ft max · 27 mi away

Mapped fishing venues near Goguac Lake

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

Angler's Bend · 7 mi away
Gull Lake · 13 mi away
Indian Lake · 17 mi away

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