Nearly all of the lakes in Ohio are man-made
Nearly all of the lakes in Ohio are man-made.
Besides Lake Erie, virtually all of Ohio's 50,000 lakes and ponds have been artificially created. Most are reservoirs that were dammed up in order to provide flood control or an additional water supply. According to the Cleveland Museum of Natural History's list of "natural" lakes, only about 33 of these bodies of water are legitimate!