Yes, the Warren Bridge CG (Where Green River crosses 191) and surrounding area looks like a good boondocking and fishing area. May try that on the way home for a day or two.
Still looking for someone who's driven a class A along the Greys River road. e.g. Moose Flat CG and Murphy Creek CG look interesting on Google maps. Lots of little spurs near the river that look like good spots to set up camp.
Cliff
1999 Itasca 34V DP
2000 Jeep Wrangler
2014 Honda CRV