Bathymetry is the process of mapping the depths of a body of water. The data collected can be compiled into a topographic map or used in a number of other ways to help the Minnehaha Creek Watershed District chart water quality or other changes to a water body. Mapping has been completed at the following locations.

2006

• Christmas Lake (City of Shorewood/Chanhassen; Mapping conducted by the MNDNR)

2008

• Lake Minnetonka
• Dutch Lake (City of Mound)
• Gleason Lake (City of Plymouth)
• Piersons Lake (Laketown Township)
• Schutz Lake (City of Victoria)

2009

• Lake Hiawatha (City of Minneapolis)
• Lake Nokomis (City of Minneapolis) 

2010

• Lake Minnewashta (City of Chanhassen)
• Lake Virginia (City of Victoria)
• Langdon Lake (City of Mound)

2011

• Parley Lake (Laketown Township)
• Wassermann Lake (Laketown Township)

2013

• Kelser's Pond (City of Victoria)
• Long Lake (City of Long Lake)
• Taft Lake (City of Richfield)
• Turbid Lake (Laketown Township) (no map at this time)