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Michigan lake depth maps

Green Lake depth map

Green Lake in Antrim County, Michigan reaches a depth of 57 feet. Green Lake is charted here across 10 closed depth contours, from the 5 ft line down to 57 ft, enclosing about 19 acres of water. Half of that water lies inside the 10 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

Green Lake depth chart: 10 depth contours from 5 to 57 ft

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

Green Lake depth chart data: water enclosed by each contour
Depth contourWater inside itShare of mapped water
5 ft19 acres100%
10 ft9.4 acres49%
15 ft8.1 acres42%
20 ft7.4 acres39%
25 ft6.8 acres35%
30 ft5.9 acres30%
40 ft5.1 acres27%
45 ft3.9 acres20%
50 ft1.6 acres8.5%
57 ftunder 1 acre2.4%

Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 19 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 Green Lake: a broad shallow flat

About 19 acres of Green Lake sit inside the survey's 5 ft contour, and half of that water is already gone by the 10 ft line: most of this Antrim County water is shallow and the depth is concentrated in one part of the basin. The steepest break on the chart runs from 5 down to 10 ft: 9.6 acres of bottom fall away across 5 ft there, which makes that band the first contour to work. The 57 ft contour, toward the southeastern 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. With 57 ft at its deepest there is no true cold-water layer here, so structure does the work the thermocline does elsewhere: fish the points and inside turns where the 5 and 10 ft lines pinch together, hardest in early season and again as fish follow bait back down in autumn.

Ice fishing on Green Lake

Green Lake's 57 ft is a workable ice depth, enough water to hold fish all winter, without the slow freeze-up of a big basin. First light belongs on the 57 ft hole, all 0.5 acres of it; as the sun gets up, move onto the 5–10 ft break, and spend the middle of the day on the flats inside the 10 ft line. Check ice thickness locally before you walk out.

Green Lake depth map FAQs

How deep is Green Lake?
Green Lake reaches a maximum depth of 57 feet in the Michigan DNR Inland Lake Contours survey. Most of it is far shallower: the survey charts 10 closed depth contours over about 19 acres, and half of that water sits inside the 10 ft line.
Where is the deepest part of Green Lake?
The deepest charted water on Green Lake lies inside the 57 ft contour, toward the southeastern corner of the lake. That contour encloses under an acre, 2.4% 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 Green Lake is shallower than 10 feet?
About half. The 10 ft contour encloses 9.4 acres of the roughly 19 acres inside the outer 5 ft line, so the other half of the water is shallower than 10 feet. The sharpest drop is between 5 and 10 feet, where the mapped water sheds 9.6 acres.
How accurate is this Green 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 Green Lake

Mapped fishing venues near Green Lake

Green 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