Hole-in-the-Rock Road Professional Review and Guide
"The drive to get to this ride’s trailhead from Boulder is unforgettable—surely one of the most scenic drives in the nation. From slickrock-engulfed Boulder, whose irrigated green fields clash magnificently with the surrounding rock, you eventually negotiate a knife-edge ridge road—rather like a petrified brontosaurus backbone—before dropping to the Calf Creek Campground. This site is highly recommended for an overnight, as well as for the hike to Lower Calf Creek Falls.
The easy, 24-mile out-and-back (12 miles each way) takes place within the 1.7-million-acre Grand Staircase–Escalante National Monument. The monument, designated by President Clinton in 1996, is unique in that it is administered by the Bureau of Land Management; all other national monuments are under the jurisdiction of the National Park Service. Devil’s Garden, the suggested turnaround, has picnic tables, a restroom, and a short hiking/nature trail."