Boundary in the Virgin River Canyon, looking Southeast. Permian Kaibab
Fromation is overlain by Triassic Moenkopi and Shinarump formations.
Kaibab Formation below the Permian-Triassic boundary is exposed in
Virgin River Canyon.
-Triassic Boundary near the Virgin River. Permian Kaibab Formation
is in the foreground with Triassic Moenkopi formation beyond.