Plenty of sites along the river with multiple ingress/egress options from the road. Right outside the entrance to Mt. Rainier National Park and the access road to Crystal Mountain. 

4x4 / high clearance vehicles recommended - saw some subarus trying to navigate into a cleared area and it was pretty scrape-y. 

Great place to stay if you can't get a spot at White River / Ohanapecosh.

Leave no trace.