Michigan lake depth maps
Long Lake depth map
Long Lake in Clare County, Michigan reaches a depth of 76 feet. The official Michigan survey maps 13 depth bands across 32 contour lines. This free map of Long Lake shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.
Long Lake depth chart: 13 depth bands to 76 ft
Data: Michigan DNR Inland Lake Contours (public record), retrieved August 2026 · depths change over time · not for navigation
| Depth contour | Share of mapped area inside it |
|---|---|
| 10 ft | about 100% |
| 20 ft | about 52% |
| 30 ft | about 26% |
| 40 ft | about 11% |
| 50 ft | about 6% |
| 60 ft | about 2% |
| 70 ft | under 1% |
Share of the surveyed surface area enclosed by each depth contour, computed from the Michigan DNR Inland Lake Contours data.
How to fish Long Lake: deep, two-story water
At 76 feet, this is a two-story fishery: warm-water species work the shallows and weed edges while the deep basin can hold cold-water fish below the summer thermocline. In summer, target the transition where the bottom breaks from the shallow shelf toward the basin; fish suspend along that edge at dawn and dusk. The 13 mapped depth bands make it straightforward to find those breaks before you launch.
Ice fishing on Long Lake
On deep water like Long Lake, the winter bite concentrates along the first major drop-off rather than the deepest basin. Use the contours above to find where the shallow shelf breaks toward deep water and set up on that edge; panfish and walleye slide up and down it through the day. Late ice often pushes fish shallower again. Always verify ice thickness locally before walking out, and remember deep lakes freeze later and less evenly than shallow ones.
Long Lake depth map FAQs
- How deep is Long Lake?
- Long Lake reaches a maximum depth of 76 feet, according to the Michigan DNR Inland Lake Contours survey. Most of the lake is shallower, with 13 mapped depth bands between the shoreline and the deepest hole.
- Where is the deepest part of Long Lake?
- The deepest surveyed water on Long Lake sits toward the eastern side of the lake, inside the 76 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
- How accurate is this Long Lake depth map?
- The contours come from the Michigan DNR Inland Lake Contours survey. 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.
Depth maps for lakes near Long Lake
- Arnold Lake depth map · 80+ ft max · 2 mi away
- Little Long Lake depth map · 60+ ft max · 5 mi away
- Windover Lake depth map · 60+ ft max · 15 mi away
- Five Lakes depth map · 60+ ft max · 15 mi away
- Silver Lake depth map · 52+ ft max · 15 mi away
Mapped fishing venues near Long Lake
Long Lake in the venue directory covers access and fishing details for this water.
- Arnold Lake · 2 mi away
- Little Long Lake · 5 mi away
- Windover Lake · 15 mi away
Fishing in Michigan needs a state license: Michigan fishing license guide · all Michigan venues