According to legend, Wall Lake gets its name from the Potawatomi Indians who had built stone walls to aid in harvesting fish.  It is claimed that the Indians would drive fish through narrow openings in the wall into shallow water, thus making catching the fish easier.  Two walls existed.  One wall was located on the northeast shore, and a second wall near the southeast shore on the peninsula.  The wall located on the northeast shore was removed in 1963.