How deep is Big Chapman Lake?

Big Chapman Lake reaches a maximum depth of 35 feet, according to the Indiana DNR Lake Bathymetry survey. Most of the lake is shallower, with 7 mapped depth bands between the shoreline and the deepest hole.

Where is the deepest part of Big Chapman Lake?

The deepest surveyed water on Big Chapman Lake sits toward the southwestern corner of the lake, inside the 35 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.

How accurate is this Big Chapman Lake depth map?

The contours come from the Indiana DNR Lake Bathymetry 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. Per Indiana DNR, the data are graphical representations for reference only, not a survey instrument.

Indiana lake depth maps

Big Chapman Lake depth map

Big Chapman Lake in KOSCIUSKO County, Indiana reaches a depth of 35 feet. The official Indiana survey maps 7 depth bands across 26 contour lines. This free map of Big Chapman Lake shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.

Big Chapman Lake depth chart: 7 depth bands to 35 ft

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

Big Chapman Lake depth chart data
Depth contour	Share of mapped area inside it
5 ft	about 100%
10 ft	about 81%
15 ft	about 72%
20 ft	about 49%
25 ft	about 22%
30 ft	about 9%
35 ft	about 2%

Share of the surveyed surface area enclosed by each depth contour, computed from the Indiana DNR Lake Bathymetry data.

How to fish Big Chapman Lake: mid-depth structure water

With 35 feet at its deepest, the fish-holding structure is the mid-depth contour: drop-offs, points and inside turns between the shallows and the basin. Use the 7 mapped depth bands to find where contour lines pinch together, which marks the sharpest breaks, and work those edges first, especially early season and again in the fall as fish follow bait between depths.

Ice fishing on Big Chapman Lake

Big Chapman Lake is a classic ice-fishing depth: enough water to hold fish all winter without the long freeze-up of a deep basin. Start on the deepest mapped hole at first light, then work the breaks where contour lines tighten. Mid-depth flats near the basin edge produce through midday. Always verify ice thickness locally before walking out.

Big Chapman Lake depth map FAQs

How deep is Big Chapman Lake?: Big Chapman Lake reaches a maximum depth of 35 feet, according to the Indiana DNR Lake Bathymetry survey. Most of the lake is shallower, with 7 mapped depth bands between the shoreline and the deepest hole.
Where is the deepest part of Big Chapman Lake?: The deepest surveyed water on Big Chapman Lake sits toward the southwestern corner of the lake, inside the 35 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
How accurate is this Big Chapman Lake depth map?: The contours come from the Indiana DNR Lake Bathymetry 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. Per Indiana DNR, the data are graphical representations for reference only, not a survey instrument.

Depth maps for lakes near Big Chapman Lake

Little Chapman Lake depth map · 25 ft max · 1 mi away
Pike Lake depth map · 30 ft max · 4 mi away
Big Barbee depth map · 42 ft max · 4 mi away
Dewart Lake depth map · 70 ft max · 6 mi away
Shock Lake depth map · 60 ft max · 7 mi away

Mapped fishing venues near Big Chapman Lake

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

Little Chapman Lake · 1 mi away
Pike Lake · 4 mi away
Big Barbee · 4 mi away

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