Green River bridge camping
A bit of a trashy area, glass, cans, shot shells, likely a weekend party spot for teen parties. No cell signal either.
This site is long ways from Vernal, so the McCoy flats BLM dispersed area is a much better option... Excellent cell signal, only a few miles into Vernal and a Walmart.. and it has new vault toilets and is free dispersed hanging with the MTB crowd
Month of VisitMay