The White River downstream of White River Crossing goes through a stunning desert canyon full of great Class III rapids with the occasional Class IV. Wood is common in the bigger rapids which generally come at the end.
Mile 0: Put-in at White River Crossing. The river below here is fun and continuous. About half way down there are some bigger Class IV rapids that deserve scouting due to wood.
Mile 12.2: Take-out in Tygh Valley.