Lake Francis Case is a large reservoir located on the Missouri River in South Dakota. It was created by the construction of the Fort Randall Dam in the 1950s and stretches approximately 102 miles in length. The lake serves multiple purposes, including flood control, hydroelectric power generation, and recreational activities. The lake is a popular destination for fishing, boating, and camping, attracting visitors to its scenic shores. It is home to various fish species, such as walleye and northern pike, making it a favored spot for anglers. The surrounding area also offers opportunities for wildlife viewing and hiking.