Roush Lake Fish and Wildlife area is dedicated to providing quality hunting and fishing opportunities while maintaining 7,347 acres of land, 900 acre lake, and 350 acres of impoundments. The property is a long narrow band along the Wabash River approximately 15 miles long.

Roush Lake was constructed in 1967 and is one of the three Upper Wabash Valley Lakes operating primarily as a unit with Mississinewa and Salamonie Lakes to control flood waters along the Wabash River Basin and secondarily with other lakes downstream in reduction of lower Wabash and Ohio River floods. The lake provides benefits to nearly 60,000 acres of agricultural lands and general recreation activities associated with hunting and fishing. The Corps of Engineers partners with Indiana Department of Natural Resources under a lease agreement. Indiana Division of Fish and Wildlife operates and maintains the recreation facilities and wildlife areas at the lake. Roush Lake was operated by Indiana Division of Reservoirs until 1998 and then by the Indiana Division of State Parks and Reservoirs until 2010.

Most revenues used in land acquisition, development, operation and maintenance of the Roush Lake Fish and Wildlife Area is derived from the sale of hunting, fishing and trapping licenses. Funds are also derived from the federal Pittman-Robertson and Dingell-Johnson programs to aid fish and wildlife restoration. These funds are derived from taxes levied on the sport hunting and fishing equipment. Indiana hunters and fisherman are proud to provide this property for the enjoyment of all people.