Whitewater Rivers in and near the Laramie Mountains, Wyoming 1   Bluegrass Creek Class II-V+ - 20 miles long (Tunnel outlet to Highway 34) Albany / Platte County 2   Deer Creek Class IV-V+ - 6 miles long (Lower Canyon) Converse County 3   Laramie River Class II-IV - 16 miles long (Tunnel Road to Palmer Canyon Road) Albany Platte County