 The Commission also proposed filling in of Kingman Lake (about 50 to 60 percent of the lake's total area) and relocating some of the riprap walls, making Islands 3 and 4 part of the mainland and adding to Langston Golf Course (located on the northern half of Kingman Island).This plan was never acted on.Since 1999, a variety of proposals have been made for Kingman Lake, most focusing on retaining the lake's character as one of the few remaining wild places within the city's limits.