Michigan lake depth maps
Glen Lake depth map
Glen Lake in Leelanau County, Michigan reaches a depth of 130 feet. Glen Lake is charted here across 7 closed depth contours, from the 5 ft line down to 125 ft, enclosing about 5,092 acres of water. Half of that water lies inside the 125 ft line, and only 1,674 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
Glen Lake depth chart: 7 depth contours from 5 to 125 ft
Data: Michigan DNR Inland Lake Contours (public record), retrieved August 2026 · depths change over time · not for navigation
| Depth contour | Water inside it | Share of mapped water |
|---|---|---|
| 5 ft | 5,092 acres | 100% |
| 15 ft | 4,490 acres | 88% |
| 25 ft | 3,952 acres | 78% |
| 50 ft | 3,553 acres | 70% |
| 75 ft | 3,270 acres | 64% |
| 100 ft | 2,898 acres | 57% |
| 125 ft | 1,674 acres | 33% |
Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 5,092 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 130 ft sounding, marked as a point rather than a closed contour, so it is not charted as a band.
Fishing Glen Lake: steep walls and a big basin
Inside its outermost 5 ft contour the survey charts about 5,092 acres of Glen Lake, with the 125 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 5 and 15 ft, where the mapped water loses 602 acres in 10 ft of depth, that band is the contour to work first, because it is where the bottom stops being flat. The deepest 125 ft contour holds 1,674 acres, 33% of the mapped water, toward the middle of the lake. 130 ft of water makes this a two-story fishery: warm-water fish hold the 5-to-125 ft ground while the basin can stay cold below the summer thermocline, and the traffic between the two runs along the 5–15 ft break at first and last light.
Ice fishing on Glen Lake
Glen 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 125 ft hole. The 5–15 ft band on the chart above is that edge: 602 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-125 ft flat. Check ice thickness locally before you walk out.
Glen Lake depth map FAQs
- How deep is Glen Lake?
- Glen Lake reaches a maximum depth of 130 feet in the Michigan DNR Inland Lake Contours survey. Most of it is far shallower: the survey charts 7 closed depth contours over about 5,092 acres, and half of that water sits inside the 125 ft line. The 130 ft figure is a single recorded sounding rather than a closed contour, so the deepest line you can actually trace on the map is 125 ft.
- Where is the deepest part of Glen Lake?
- The deepest charted water on Glen Lake lies inside the 125 ft contour, toward the middle of the lake. That contour encloses 1,674 acres, 33% of the mapped water, so it is a broad slice of the bottom rather than a pinpoint target, the depth chart above gives the contour to line up on.
- How much of Glen Lake is shallower than 125 feet?
- About half. The 125 ft contour encloses 1,674 acres of the roughly 5,092 acres inside the outer 5 ft line, so the other half of the water is shallower than 125 feet. The sharpest drop is between 5 and 15 feet, where the mapped water sheds 602 acres.
- How accurate is this Glen 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 Glen Lake
- Lime Lake depth map · 67 ft max · 6 mi away
- Lake Ann depth map · 75 ft max · 12 mi away
- Lake Leelanau depth map · 62 ft max · 12 mi away
- Platte Lake depth map · 90+ ft max · 14 mi away
- Long Lake depth map · 88+ ft max · 15 mi away
Mapped fishing venues near Glen Lake
Glen Lake in the venue directory covers access and fishing details for this water.
- Lime Lake · 6 mi away
- Herendeene Lake · 10 mi away
- Lake Ann · 12 mi away
Fishing in Michigan needs a state license: Michigan fishing license guide · all Michigan venues