Lake Wylie is a reservoir or man-made lake in the U.S. states of South Carolina and North Carolina. The lake has a surface area of 13,400 acres and features 325 miles of shoreline. The man-made lake was first formed when the Catawba Power Company built the Catawba Dam and Power Plant near India Hook, South Carolina in 1904. This dam impounded …Lake Wylie is a reservoir or man-made lake in the U.S. states of South Carolina and North Carolina. The lake has a surface area of 13,400 acres and features 325 miles of shoreline. The man-made lake was first formed when the Catawba Power Company built the Catawba Dam and Power Plant near India Hook, South Carolina in 1904. This dam impounded the Catawba River and created Lake Catawba, which was utilized to create hydro-electric power. In 1905, the Catawba Power Company became part of the Southern Power Company.