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Indiana lake depth maps

Pretty Lake depth map

Pretty Lake in Marshall County, Indiana reaches a depth of 80 feet. Pretty Lake is charted here across 8 closed depth contours, from the 5 ft line down to 80 ft, enclosing about 83 acres of water. Half of that water lies inside the 50 ft line, and only 3.8 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

Pretty Lake depth chart: 8 depth contours from 5 to 80 ft

Data: Indiana DNR Lake Bathymetry (credit: Indiana DNR), retrieved August 2026 · depths change over time · not for navigation

Pretty Lake depth chart data: water enclosed by each contour
Depth contourWater inside itShare of mapped water
5 ft83 acres100%
15 ft68 acres82%
25 ft57 acres69%
40 ft55 acres66%
50 ft38 acres46%
60 ft27 acres33%
70 ft18 acres21%
80 ft3.8 acres4.6%

Acreages are computed from the closed Indiana DNR Lake Bathymetry contour rings, with islands subtracted. Shares are of the 83 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 Pretty Lake: steep walls and a big basin

The survey encloses about 83 acres of Pretty Lake inside its 5 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 40 and 50 ft the mapped water sheds 17 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 80 ft contour holds 3.8 acres, 4.6% of the mapped water, toward the northeastern corner of the lake. 80 ft of water makes this a two-story fishery: warm-water fish hold the 5-to-50 ft ground while the basin can stay cold below the summer thermocline, and the traffic between the two runs along the 40–50 ft break at first and last light.

Ice fishing on Pretty Lake

Pretty 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 80 ft hole. The 40–50 ft band on the chart above is that edge: 17 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-50 ft flat. Check ice thickness locally before you walk out.

Pretty Lake depth map FAQs

How deep is Pretty Lake?
Pretty Lake reaches a maximum depth of 80 feet in the Indiana DNR Lake Bathymetry survey. Most of it is far shallower: the survey charts 8 closed depth contours over about 83 acres, and half of that water sits inside the 50 ft line.
Where is the deepest part of Pretty Lake?
The deepest charted water on Pretty Lake lies inside the 80 ft contour, toward the northeastern corner of the lake. That contour encloses 3.8 acres, 4.6% 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 Pretty Lake is shallower than 50 feet?
About half. The 50 ft contour encloses 38 acres of the roughly 83 acres inside the outer 5 ft line, so the other half of the water is shallower than 50 feet. The sharpest drop is between 40 and 50 feet, where the mapped water sheds 17 acres.
How accurate is this Pretty 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 Pretty Lake

Mapped fishing venues near Pretty Lake

Pretty Lake in the venue directory covers access and fishing details for this water.

Fishing in Indiana needs a state license: Indiana fishing license guide · all Indiana venues