Santa Rosa California to Yellowstone Park
we're planning a trip to Yellowstone park starting in Santa Rosa CA, heading north as far as Newport Oregon taking Hwy 20 east to Payette lakes, Idaho east to Jackson Wyoming and then on to Yellowstone. Our AS is a 27' International. Camp sites in Yellowstone after September 3 seem few and far between. Any suggestions for camping a long the way would be greatly appreciated particularly in Oregon, Idaho and Yellowstone vicinity.