Buried in Stone
The San Rafael Swell is a kaleidoscope of colors splashed across a rugged landscape of cliffs, canyons, arches and pinnacles. Erosion sculpts the stone, but the environment in which it was deposited determines its color. In general, the brighter colors, red, yellow, and orange, are present in rocks deposited where oxygen was present. Examples of these environments are sand dunes and floodplain material higher then the water table. The duller colors, gray, light green, and purple, are present in rocks where there was no oxygen as they were deposited. These would be formed at the bottom of an inland sea or below a water table. These boggy places also trapped the bodies of dinosaurs ad preserved their bones as fossils. The Cleavland-Lloyd Dinosaur Quarry to the north of here has yielded hundreds of dinosaur fossils. This world famous quarry has produced more dinosaur mounts for display in museums then any other in the world, all thanks to the amazing fosilization of these once boggy areas now in front of you and all around you, take a minute to look at how different this place once was.