Juniper-covered siltstone ledges of the Torrey Member of the Triassic-age Moenkopi Formation (foreground) rise to a seemingly impenetrable wall of Triassic- to Jurassic- age Wingate (red vertical cliffs in middle of photo) and Navajo (white bluffs at top of cliff) Sandstones in Capitol Reef National Park. Early explorers referred to any long barrier to travel as a “reef,” while the dome-shaped bluffs of Navajo Sandstone reminded them of the United States Capitol building—thus the name “Capitol Reef.”
You might also like
POPULAR POSTS & PAGES
- Glad You Asked: Ice Ages – What are they and what causes them?
- Rock & Mineral Collecting Sites
- Glad You Asked: Igneous, Sedimentary, & Metamorphic Rocks
- Utah: A Geologic History
- Fool's Gold
- Commonly Asked Questions About Utah's Great Salt Lake & Lake Bonneville
- Rocks and Minerals
- Glad You Asked: How Do Geologists Know How Old a Rock Is?
LEARN MORE ABOUT THE UTAH GEOLOGICAL SURVEY
The Utah Geological Survey (UGS) is a division of the Utah Department of Natural Resources. Several specialized programs comprise the UGS: Energy & Minerals, Geologic Hazards, Geologic Information & Outreach, Geologic Mapping, Groundwater & Wetlands, and Paleontology.
1594 West North Temple, Suite 3110
Salt Lake City, Utah 84116
PO BOX 146100
Salt Lake City, Utah 84114
Monday through Friday,
8 a.m. to 5 p.m.