Michigan lake depth maps
Big Mosquito Lake depth map
Big Mosquito Lake in Gogebic County, Michigan reaches a depth of 65 feet. Big Mosquito Lake is charted here across 13 closed depth contours, from the 5 ft line down to 65 ft, enclosing about 14 acres of water. Half of that water lies inside the 20 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
Big Mosquito Lake depth chart: 13 depth contours from 5 to 65 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 | 14 acres | 100% |
| 10 ft | 12 acres | 84% |
| 15 ft | 9.1 acres | 63% |
| 20 ft | 6.8 acres | 47% |
| 25 ft | 5.9 acres | 41% |
| 30 ft | 4.1 acres | 29% |
| 35 ft | 3.3 acres | 23% |
| 40 ft | 2.6 acres | 18% |
| 45 ft | 1.9 acres | 13% |
| 50 ft | 1.3 acres | 8.7% |
| 55 ft | under 1 acre | 5.6% |
| 60 ft | under 1 acre | 2.8% |
| 65 ft | under 1 acre | 1.5% |
Acreages are computed from the closed Michigan DNR Inland Lake Contours contour rings, with islands subtracted. Shares are of the 14 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 Big Mosquito Lake: a wide shallow flat over a deep hole
The survey encloses about 14 acres of Big Mosquito Lake inside its 5 ft contour, and half of that water lies inside the 20 ft line, so the bulk of this Gogebic County water sits on a shallow flat, with the real depth packed into one part of the basin. Between 10 and 15 ft the mapped water sheds 2.9 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. Inside the 65 ft contour there is under an acre of water, toward the middle of the lake: a single pocket rather than a basin, and worth a drift over in high summer. 65 ft of water makes this a two-story fishery: warm-water fish hold the 5-to-20 ft ground while the basin can stay cold below the summer thermocline, and the traffic between the two runs along the 10–15 ft break at first and last light.
Ice fishing on Big Mosquito Lake
Big Mosquito 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 65 ft hole. The 10–15 ft band on the chart above is that edge: 2.9 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-20 ft flat. Check ice thickness locally before you walk out.
Big Mosquito Lake depth map FAQs
- How deep is Big Mosquito Lake?
- Big Mosquito Lake reaches a maximum depth of 65 feet in the Michigan DNR Inland Lake Contours survey. Most of it is far shallower: the survey charts 13 closed depth contours over about 14 acres, and half of that water sits inside the 20 ft line.
- Where is the deepest part of Big Mosquito Lake?
- The deepest charted water on Big Mosquito Lake lies inside the 65 ft contour, toward the middle of the lake. That contour encloses under an acre, 1.5% 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 Big Mosquito Lake is shallower than 20 feet?
- About half. The 20 ft contour encloses 6.8 acres of the roughly 14 acres inside the outer 5 ft line, so the other half of the water is shallower than 20 feet. The sharpest drop is between 10 and 15 feet, where the mapped water sheds 2.9 acres.
- How accurate is this Big Mosquito 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 Big Mosquito Lake
- Grace Lake depth map · 65 ft max · 0 mi away
- Emeline Lake depth map · 75 ft max · 1 mi away
- Clark Lake depth map · 74 ft max · 7 mi away
- Corey Lake depth map · 33 ft max · 8 mi away
- Ormes Lake depth map · 65+ ft max · 9 mi away
Mapped fishing venues near Big Mosquito Lake
Big Mosquito Lake in the venue directory covers access and fishing details for this water.
- Grace Lake · 0 mi away
- Emeline Lake · 1 mi away
- Clark Lake · 7 mi away
Fishing in Michigan needs a state license: Michigan fishing license guide · all Michigan venues