Last month we did a really nice float of the Ruby Horsethief Canyon section of the Colorado River in CO/UT.
The put in is Loma boat launch in Loma, CO just west of Grand Junction and goes for 25 miles to Westwater boat launch in Utah. This is a super easy 2 day paddle through redrock canyons but does require permitted camping.
We were able to snag a last minute permit and a decent camp spot halfway.
It took just under 4 hours of barely paddling to reach camp at 12 miles. The flow was mellow but a fairly consistent 3mph. This is a great introduction section for multi-day packrafting.