Lake Shelbyville is a premier fishing destination located in Shelby and Moultrie Counties in east-central Illinois. Created in 1970 by the U.S. Army Corps of Engineers, this 11,100-acre reservoir spans approximately 20 miles with 172 miles of irregular shoreline, creating numerous bays and coves that provide excellent fishing opportunities. Situated between Sullivan and Shelbyville, the lake is formed by a dam on the Kaskaskia River and features a Y-shaped configuration with arms formed by the West Okaw River to the north and the Kaskaskia to the east. Lake Shelbyville's diverse underwater terrain includes creek channels, flooded plains, drop-offs, and extensive shallow flats (3-8 feet deep at normal pool), along with numerous underwater structures such as flooded timber, old roadbeds, and fence rows. With an average depth of 18.9 feet and a maximum depth of 67 feet, the lake offers varied habitats that support a rich diversity of fish species, making it one of Illinois' most popular recreational fishing destinations.