Mystery Valley Golf Club is a municipal golf course located just south of Stone Mountain in Lithonia.

The golf course is a challenging parkland-style layout on hilly terrain along isolated and narrow, tree-lined fairways. There are several water hazards in play and a modest amount of sand bunkers mostly around the mid-sized, quick, and undulating greens. The golf course was designed by Dick Wilson in 1966 and is 6,700 yards from the black tees, 71.7/125, course/slope ratings with two shorter tees.