This layer does not occur in Canyonlands, but may be seen in some areas of Arches National Park and around Hovenweep National Monument.
Early- to mid-Cretaceous (64 to 144 million years ago)
Varid from alluvial fans in the south to more marine environments in the north (Book Cliffs).
Brown, cross-bedded sandstone
The mesa tops east of Monticello on U.S. Highway 491