Exploring Iowas Depths: What Is The Deepest Man-Made Lake?

The deepest lake in Iowa is West Okoboji, which is the second largest in a chain of lakes covering a total area of 3,850 acres. It was formed approximately 14,000 years ago by the Wisconsin Glacier and boasts a maximum depth of 136 feet. This depth distinction grants West Okoboji the title of being the deepest natural lake in the state of Iowa.

Lake Red Rock, located approximately 45 miles southeast of Des Moines, is the largest man-made lake in Iowa and holds the distinction of being the largest lake in the entire state. Covering an impressive expanse of approximately 109.4 square miles, it can contain up to about 61.59 billion gallons of water. This stunning lake is situated along the Des Moines River, making it a significant waterbody in the region. As of May 30, 2023, Lake Red Rock remains a prominent landmark, offering both recreational opportunities and a vital water source for the surrounding areas.

Is West Okoboji Lake a man-made or natural lake? West Okoboji Lake, also referred to as West Lake Okoboji, is indeed a natural body of water spanning approximately 3,847 acres (15.57 km2) in size. Located in Dickinson County in northwestern Iowa, United States, this lake forms a vital component of the Iowa Great Lakes chain. Unlike some lakes in the area that have been artificially created, West Okoboji Lake has formed naturally over time, contributing to the unique landscape of the region.