Black Diamond Guest Ranch offers cabin lodging, horse trail rides, group activities, camping, retreats, snowmobiling, lodging, back packing, bike rentals, family style barbecues, host a family reunion, golfing, rafting close by, and more . The Best Kept Secret in Montana! Located near historic Circle City and minutes from Lookout Ski Resort, $50,000 Silver Dollar Bar and The Yellowstone/Hiawatha Trails.