Lake Norconian, is an artificial lake, in Norco, Riverside County, California.Lake Norconian was created in the early 1920s as part of the Norconian Resort. This 60acre lake was equipped with a boat house and beautiful Pavilion. It was the site where a few 1930's movies were filmed. Acquired with the resort by the U. S. Navy in 1941, the lake is now part of the Naval Surface Warfare Assessment Center.