Textbook angular unconformity...

along the Colorado River, upstream from Moab, Utah.

The prominent cliff-former is the Lower Jurassic Wingate Sandstone with the underlying Upper Triassic Chinle Formation that contains the angular unconformity.

The prominent cliff-former is the Lower Jurassic Wingate Sandstone with the underlying Upper Triassic Chinle Formation that contains the angular unconformity.