By: G. C. Willis
Grand Staircase-Escalante National Monument covers 1.7 million acres between Bryce Canyon and Capitol Reef National Parks. The geology consists of 6,000 feet of well-exposed, layered sedimentary rocks that are between about 65 million and 200 million years old, a basalt flow about one million years old, and thin surficial â€œcover.â€ Alternating layers of resistant (cliff-forming) and nonresistant (valley-forming) rock create the â€œstaircaseâ€ â€“ each â€œriserâ€ is a cliff as much as 2,000 feet high, and each â€œtreadâ€ is a valley or plateau as much as 15 miles wide.
Location: Garfield County and Kane County
Media Type: Paper Postcard