Us Army Corps of Engineers.
Monroe Lake: while this area of southern Indiana is known as the "The Limestone Capital of the World," at one time it also had several salt deposits, creating a lucrative trade by rafting the mined salt down the creek that would one day become Monroe Lake. Hence the name, Salt Creek.
South of Bloomington, IN. From IN 37, exit at Smithville Road or Harrodsburg exits; or east on IN 46, south on IN 446.