Gallatin River
Moonlight Basin opened as an independent ski area in December 2003 on the north face of Lone Mountain. The 11,166 foot (3403 m) summit can be accessed by the Lone Peak Tram, part of Big Sky Resort. The resort, which was built completely on private land, is adjacent to the Lee Metcalf Wilderness Area and the Yellowstone Club in the Madison River drainage in Madison County. The Big Sky Resort, also on private land, is in the Gallatin River drainage which drains into Gallatin County.