How deep is Riddles Lake?

Riddles Lake reaches a maximum depth of 18 feet, according to the Indiana DNR Lake Bathymetry survey. Most of the lake is shallower, with 6 mapped depth bands between the shoreline and the deepest hole.

Where is the deepest part of Riddles Lake?

The deepest surveyed water on Riddles Lake sits toward the northwestern corner of the lake, inside the 18 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.

How accurate is this Riddles 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

Riddles Lake depth map

Riddles Lake in ST. JOSEPH County, Indiana reaches a depth of 18 feet. The official Indiana survey maps 6 depth bands across 9 contour lines. This free map of Riddles Lake shows every surveyed contour as an interactive depth chart you can use to plan a session before you travel.

Riddles Lake depth chart: 6 depth bands to 18 ft

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

How to fish Riddles Lake: shallow, weed-oriented water

Topping out around 18 feet, this is a shallow fishery where weed growth, not depth, structures the water. The contours still matter: the deepest hole concentrates fish in high summer and under ice, and subtle one-band depressions are the spots most anglers row straight past. In winter, shallow lakes like this are often first to make safe ice, and the deepest mapped hole is the classic starting point.

Ice fishing on Riddles Lake

Shallow lakes like Riddles Lake are usually among the first to make safe, fishable ice. The deepest mapped hole is the classic starting point because it concentrates fish once weed beds die back, and the subtle depressions on the map above are the spots most anglers walk straight past. Always verify ice thickness locally before walking out.

Riddles Lake depth map FAQs

How deep is Riddles Lake?: Riddles Lake reaches a maximum depth of 18 feet, according to the Indiana DNR Lake Bathymetry survey. Most of the lake is shallower, with 6 mapped depth bands between the shoreline and the deepest hole.
Where is the deepest part of Riddles Lake?: The deepest surveyed water on Riddles Lake sits toward the northwestern corner of the lake, inside the 18 ft contour. The interactive depth map above shows the full basin outline and the breaks leading into it.
How accurate is this Riddles 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 Riddles Lake

Cedar Lake depth map · 25 ft max · 3 mi away
Worster Lake depth map · 18 ft max · 6 mi away
Dixon Lake depth map · 35 ft max · 13 mi away
North Chain Lake depth map · 32 ft max · 15 mi away
Myers Lake depth map · 50 ft max · 15 mi away

Mapped fishing venues near Riddles Lake

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

Cedar Lake · 3 mi away
Worster Lake · 6 mi away
Dixon Lake · 13 mi away

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