Indiana lake depth maps
Larwill Lake depth map
Larwill Lake in Whitley County, Indiana reaches a depth of 35 feet. Larwill Lake is charted here across 7 closed depth contours, from the 5 ft line down to 35 ft, enclosing about 7.1 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: Indiana DNR Lake Bathymetry (credit: Indiana DNR). Contours closed, checked and area-computed by Jordan Carter, founder of GilledIt · page updated
Larwill Lake depth chart: 7 depth contours from 5 to 35 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 |
|---|---|---|
| 5 ft | 7.1 acres | 100% |
| 10 ft | 6.2 acres | 87% |
| 15 ft | 4.8 acres | 67% |
| 20 ft | 3.4 acres | 48% |
| 25 ft | 2.3 acres | 33% |
| 30 ft | 1.1 acres | 15% |
| 35 ft | under 1 acre | 2.6% |
Acreages are computed from the closed Indiana DNR Lake Bathymetry contour rings, with islands subtracted. Shares are of the 7.1 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 Larwill Lake: an evenly graded bottom
About 7.1 acres of Larwill Lake sit inside the survey's 5 ft contour, and half of that water is already gone by the 20 ft line: the bottom falls away at a steady rate rather than shelving off or dropping in one step. The steepest break on the chart runs from 10 down to 15 ft: 1.4 acres of bottom fall away across 5 ft there, which makes that band the first contour to work. The 35 ft contour, toward the southeastern 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. With 35 ft at its deepest there is no true cold-water layer here, so structure does the work the thermocline does elsewhere: fish the points and inside turns where the 10 and 15 ft lines pinch together, hardest in early season and again as fish follow bait back down in autumn.
Ice fishing on Larwill Lake
Larwill Lake's 35 ft is a workable ice depth, enough water to hold fish all winter, without the slow freeze-up of a big basin. First light belongs on the 35 ft hole, all 0.2 acres of it; as the sun gets up, move onto the 10–15 ft break, and spend the middle of the day on the flats inside the 20 ft line. Check ice thickness locally before you walk out.
Larwill Lake depth map FAQs
- How deep is Larwill Lake?
- Larwill Lake reaches a maximum depth of 35 feet in the Indiana DNR Lake Bathymetry survey. Most of it is far shallower: the survey charts 7 closed depth contours over about 7.1 acres, and half of that water sits inside the 20 ft line.
- Where is the deepest part of Larwill Lake?
- The deepest charted water on Larwill Lake lies inside the 35 ft contour, toward the southeastern corner of the lake. That contour encloses under an acre, 2.6% 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 Larwill Lake is shallower than 20 feet?
- About half. The 20 ft contour encloses 3.4 acres of the roughly 7.1 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 1.4 acres.
- How accurate is this Larwill 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 Larwill Lake
- Robinson Lake depth map · 50 ft max · 4 mi away
- Troy-cedar Lake depth map · 80 ft max · 5 mi away
- Big Barbee depth map · 42 ft max · 9 mi away
- Baugher Lake depth map · 30 ft max · 10 mi away
- Smalley Lake depth map · 44 ft max · 10 mi away
Mapped fishing venues near Larwill Lake
Larwill Lake in the venue directory covers access and fishing details for this water.
- Robinson Lake · 4 mi away
- Troy-cedar Lake · 5 mi away
- Big Barbee · 9 mi away
Fishing in Indiana needs a state license: Indiana fishing license guide · all Indiana venues