San Rafael Swell

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San Rafael Swell

The San Rafael Swell is a large geologic feature located in south-central Utah, United States. It is a prominent anticline that was formed approximately 40 to 60 million years ago during the Laramide orogeny. The Swell is characterized by its rugged terrain, deep canyons, and striking rock formations, making it a popular destination for outdoor enthusiasts and geologists alike.

Geography

The San Rafael Swell covers an area of about 2,000 square miles (5,200 km²) and is situated primarily within Emery and Wayne counties. The Swell is bounded by the Wasatch Plateau to the west and the San Rafael Desert to the east. The Green River forms the eastern boundary of the Swell, while the Interstate 70 cuts through its northern section.

Geology

The San Rafael Swell is an example of a dome structure, where layers of rock have been pushed upward to form a broad, rounded uplift. The Swell is composed of sedimentary rock layers that date back to the Jurassic and Cretaceous periods. Notable formations within the Swell include the Navajo Sandstone, Wingate Sandstone, and Morrison Formation.

Recreation

The San Rafael Swell offers a variety of recreational activities, including hiking, camping, rock climbing, and off-roading. Popular destinations within the Swell include the Little Wild Horse Canyon, Goblin Valley State Park, and the San Rafael Reef. The area is also known for its extensive network of slot canyons and pictographs and petroglyphs left by ancient Native American cultures.

Flora and Fauna

The Swell's diverse habitats support a wide range of plant and animal species. Common vegetation includes sagebrush, juniper, and pinyon pine. Wildlife in the area includes mule deer, bighorn sheep, coyotes, and various species of raptors and reptiles.

Conservation

Much of the San Rafael Swell is managed by the Bureau of Land Management (BLM), which oversees its use and conservation. Efforts are ongoing to protect the Swell's unique geological features and cultural resources while balancing recreational use and resource extraction.

Related Pages

• Geology of Utah
• Laramide orogeny
• Navajo Sandstone
• Wingate Sandstone
• Morrison Formation
• Goblin Valley State Park
• Slot canyon
• Pictograph
• Petroglyph