Michigan lake depth maps
Twin Lakes depth map
Twin Lakes in Cheboygan County, Michigan reaches a depth of more than 73 feet at its deepest surveyed sounding. Twin Lakes is charted here across 14 closed depth contours, from the 5 ft line down to 70 ft, enclosing about 140 acres of water. Half of that water lies inside the 25 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
Twin Lakes depth chart: 14 depth contours from 5 to 70 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 | 140 acres | 100% |
| 10 ft | 107 acres | 76% |
| 15 ft | 89 acres | 64% |
| 20 ft | 72 acres | 51% |
| 25 ft | 49 acres | 35% |
| 30 ft | 32 acres | 23% |
| 35 ft | 25 acres | 18% |
| 40 ft | 19 acres | 14% |
| 45 ft | 12 acres | 8.9% |
| 50 ft | 9.8 acres | 7% |
| 55 ft | 7 acres | 5% |
| 60 ft | 3.7 acres | 2.6% |
| 65 ft | 2.1 acres | 1.5% |
| 70 ft | under 1 acre | under 1% |
Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 140 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 73 ft sounding, marked as a point rather than a closed contour, so it is not charted as a band.
Fishing Twin Lakes: a stepped drop into deep water
Inside its outermost 5 ft contour the survey charts about 140 acres of Twin Lakes, with the 25 ft line enclosing half of it, so the bottom steps down contour by contour into the deep basin rather than shelving flat or plunging all at once. The sharpest change on the chart is between 5 and 10 ft, where the mapped water loses 33 acres in 5 ft of depth, that band is the contour to work first, because it is where the bottom stops being flat. The 70 ft contour, toward the northwestern 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 73 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-25 ft ground, and the fish that move between the two do it along the 5–10 ft break at first and last light.
Ice fishing on Twin Lakes
Deep water like Twin Lakes 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 70 ft hole. That edge is the 5–10 ft band on the chart above, where 33 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-25 ft flat. Check ice thickness locally before you walk out.
Twin Lakes depth map FAQs
- How deep is Twin Lakes?
- Twin Lakes is at least 73 feet deep. That figure is the deepest surveyed sounding in the Michigan DNR Inland Lake Contours survey, a point measurement rather than a closed contour, so the deepest line you can actually trace on the map is the 70 ft contour, and the water may run deeper still.
- Where is the deepest part of Twin Lakes?
- The deepest charted water on Twin Lakes lies inside the 70 ft contour, toward the northwestern 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 Twin Lakes is shallower than 25 feet?
- About half. The 25 ft contour encloses 49 acres of the roughly 140 acres inside the outer 5 ft line, so the other half of the water is shallower than 25 feet. The sharpest drop is between 5 and 10 feet, where the mapped water sheds 33 acres.
- How accurate is this Twin Lakes 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 Twin Lakes
- Long Lake depth map · 61 ft max · 5 mi away
- Black Lake depth map · 50 ft max · 5 mi away
- Mullett Lake depth map · 120 ft max · 12 mi away
- Burt Lake depth map · 73 ft max · 19 mi away
- Douglas Lake depth map · 80+ ft max · 19 mi away
Mapped fishing venues near Twin Lakes
Twin Lakes in the venue directory covers access and fishing details for this water.
- Long Lake · 5 mi away
- Black Lake · 5 mi away
- Mullett Lake · 12 mi away
Fishing in Michigan needs a state license: Michigan fishing license guide · all Michigan venues