Slopes of mancos shale
This layer does not occur in Canyonlands, but may be seen north of the park as slopes below the Book Cliffs on Interstate 70 between Green River, UT and Grand Junction, CO.
Mid-Cretaceous (64 to 144 million years ago)
Near-shore regimes (e.g. tidal flats)
Slope forming, gray shales
Floor of Cache Valley in Arches National Park
Flash animations manage to simplify the story of Canyonlands.
Last Updated: 04/19/2015