I just did pump to cottonwood island last week. Stayed at a nice camp around MM 34 (caught a couple decent rainbows in the eddy). Cottonwood Corner (MM 35) also had some nice spots. Both were roadside and there were quite a few gravel trucks, must be doing roadwork somewhere. Stayed at Spencer's Cabin (MM 43) right before burns. You can rent it for 25 with no reservation fee @ Open Space - Spencers Cabin - Eagle County
After burns there are two nicer camps on river left in the Bull Gulch Wilderness study area ~ MM 51 and MM 51.5. Eagle county has one near MM 53, it is tucked into a small eddy on the right at the head of a left hand turn and a rocky rifle right after the landing, so be over there if you want to catch it. And yes, plenty of BLM land all around mixed in with some private.
Pinball, Catamount, and Two Bridges all have god trailer access. Cottonwood is pretty beat up but doable as is Lyons gulch. Dotsero is cement ramp. I believe that Derby Junction is decent as well, but it is private. No idea who you talk to, but this guy would know: ConfluenceCasting2016a - Page: 18 of 18
No more access at Burns, it wasn't any good for a trailer anyways.
Have fun, mostly roadside after Rancho except for the 4 miles after Catamount, which is a really cool canyon. Still nice enough.