Redcliff is a 13er in the Cimarron Range and shares a saddle with its famous sister, Coxcomb. It’s also one of my favorite 13ers of all times and likely won’t see another soul. This one will take research on your part — I first summited Redcliff prior to having Gaia to record my trek.
From the Saddle, you get unmatched views of the Sneffels Range, as well as Wetterhorn, Matterhorn, and Uncompahgre.
From the Matterhorn 4WD trailhead, hike south on the main trail #226 that leads to a pass west of Coxcomb and that drops into Wetterhorn Basin. You'll only be hiking on this trail for just under two miles before leaving it. In earlier season when there is still snow in the upper basin, it's easy to lose this trail at times, especially when it goes through the forest. You will likely want to leave the main trail at elevation 11,400 ft., in the vicinity where two main creeks come together. Head southeast now, following that drainage and gaining elevation, aiming for the Coxcomb - Redcliff saddle. Rock bands below each peak open at a point just below the saddle. Head for that gap and you'll have no problems.