San Rafael Swell
 The San Rafael Swell is a large geologic feature located in south-central Utah USA about 30 miles (48 km) west of Green River Utah. The San Rafael Swell approximately 75 by 40 miles (121 by 64 km) consists of a giant dome-shaped anticline of sandstone shale and limestone that was pushed up during the Paleocene Laramide Orogeny 60-40 million years ago.