Morrison, Colorado - Wave ripple marks in the sandstone at Dinosaur Ridge. The ripple marks were left 100 million years ago when the area was a beach.

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Morrison, Colorado - Wave ripple marks in the sandstone at Dinosaur Ridge. The ripple marks were left 100 million years ago when the area was a beach. Visitors can see hundreds of dinosaur footprints along the ridge, just west of Denver.

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Size: 6720px × 4480px
Location: Morrison, Colorado, United States
Photo credit: © Jim West / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, beach, colorado, cretaceous, denver, dinosaur, horizontal, marks, morrison, period, prehistoric, prehistory, ridge, ripple, rock, sandstone, states, tourism, travel, united, usa, wave