Indiana lake depth maps
Fish Lake depth map
Fish Lake in LaGrange County, Indiana reaches a depth of 70 feet. Fish Lake is charted here across 7 closed depth contours, from the 10 ft line down to 70 ft, enclosing about 84 acres of water. Half of that water lies inside the 50 ft line, and only 23 acres lie inside the deepest one. Every contour is on the interactive map below, free and without an account.
Data: Indiana DNR Lake Bathymetry (credit: Indiana DNR). Contours closed, checked and area-computed by Jordan Carter, founder of GilledIt · page updated
Fish Lake depth chart: 7 depth contours from 10 to 70 ft
Data: Indiana DNR Lake Bathymetry (credit: Indiana DNR), retrieved August 2026 · depths change over time · not for navigation
| Depth contour | Water inside it | Share of mapped water |
|---|---|---|
| 10 ft | 84 acres | 100% |
| 20 ft | 75 acres | 90% |
| 30 ft | 61 acres | 73% |
| 40 ft | 47 acres | 56% |
| 50 ft | 40 acres | 48% |
| 60 ft | 33 acres | 39% |
| 70 ft | 23 acres | 27% |
Acreages are computed from the closed Indiana DNR Lake Bathymetry contour rings, with islands subtracted. Shares are of the 84 acres inside the outermost charted contour (the 10 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 Fish Lake: steep walls and a big basin
The survey encloses about 84 acres of Fish Lake inside its 10 ft contour, and half of that water lies inside the 50 ft line, so depth comes quickly here, with no long shallow margin before the bottom drops away. Between 20 and 30 ft the mapped water sheds 14 acres in 10 ft of depth, the sharpest change on the chart, start on that band, because it is where the bottom stops being flat. The deepest 70 ft contour holds 23 acres, 27% of the mapped water, toward the northeastern corner of the lake. 70 ft of water makes this a two-story fishery: warm-water fish hold the 10-to-50 ft ground while the basin can stay cold below the summer thermocline, and the traffic between the two runs along the 20–30 ft break at first and last light.
Ice fishing on Fish Lake
Fish 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 70 ft hole. The 20–30 ft band on the chart above is that edge: 14 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 10-to-50 ft flat. Check ice thickness locally before you walk out.
Fish Lake depth map FAQs
- How deep is Fish Lake?
- Fish Lake reaches a maximum depth of 70 feet in the Indiana DNR Lake Bathymetry survey. Most of it is far shallower: the survey charts 7 closed depth contours over about 84 acres, and half of that water sits inside the 50 ft line.
- Where is the deepest part of Fish Lake?
- The deepest charted water on Fish Lake lies inside the 70 ft contour, toward the northeastern corner of the lake. That contour encloses 23 acres, 27% 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 Fish Lake is shallower than 50 feet?
- About half. The 50 ft contour encloses 40 acres of the roughly 84 acres inside the outer 10 ft line, so the other half of the water is shallower than 50 feet. The sharpest drop is between 20 and 30 feet, where the mapped water sheds 14 acres.
- How accurate is this Fish Lake depth map?
- The contours come from the Indiana DNR Lake Bathymetry 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. Per Indiana DNR, the data are graphical representations for reference only, not a survey instrument. 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 Fish Lake
- Emma Lake depth map · 30 ft max · 2 mi away
- Hackleburg Lake depth map · 35 ft max · 5 mi away
- Dallas Lake depth map · 100 ft max · 5 mi away
- Oliver Lake depth map · 80 ft max · 5 mi away
- Olin Lake depth map · 70 ft max · 6 mi away
Mapped fishing venues near Fish Lake
Fish Lake in the venue directory covers access and fishing details for this water.
- Emma Lake · 2 mi away
- Hackleburg Lake · 5 mi away
- Dallas Lake · 5 mi away
Fishing in Indiana needs a state license: Indiana fishing license guide · all Indiana venues