What on Earth Volume 7 2011
Ribbon Falls Hike
The oldest rocks of the Grand Canyon Group are a basal conglomerate called the Hotauta Conglomerate.
Clear Creek Trail and the Great Unconformity
Follow the trail along the unconformity into the valley with a great view of Zoroaster Temple. As you cross the dry stream bed, follow it down to and study the polished surface of the folded schist and the place where rocks are forced into the bedding during flash floods. This is as far as we ventured on our visit.