Lake McConaughy is a 35,700-acre Nebraska Public Power District reservoir on the North Platte River in Keith County in the Nebraska Sandhills — the largest reservoir in Nebraska and the premier recreational boating and fishing destination in the state. Known locally as “Big Mac,” Lake McConaughy stretches approximately 22 miles across the vast open prairie of western Nebraska with 105 miles of white sand shoreline that creates a beach and boating culture unlike any other lake in the Midwest directory. The white sand beaches of Lake McConaughy draw summer visitors from across Nebraska and surrounding states for a coastal-style lake experience in the middle of the Great Plains — a genuinely unique combination of open water sailing, beach recreation, and productive fishery that makes Big Mac Nebraska’s most iconic recreational lake. The walleye fishery is the lake’s primary angling draw — Lake McConaughy produces trophy walleye that draw serious anglers from across Nebraska, Colorado, and Kansas. White bass, striped bass, smallmouth bass, and rainbow trout stocked by the Nebraska Game and Parks Commission round out a diverse fishery across 35,700 acres of North Platte River impoundment. Find Boat Services lists verified boat repair, motor service, electronics installation, trailer repair, and storage providers serving Lake McConaughy within 35 miles across Keith County and the western Nebraska corridor.