Permian- and Triassic-age sedimentary rocks color the shorelines of dam-impounded Lake Powell near the confluence of the Colorado and Dirty Devil Rivers. Although the lake water has submerged numerous relicts of ancient animal (including human) and plant life, traces of prehistoric life can still be found along the lake shores and in some tributaries.
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POPULAR POSTS & PAGES
- Glad You Asked: Ice Ages – What are they and what causes them?
- Glad You Asked: Igneous, Sedimentary, & Metamorphic Rocks
- Rock & Mineral Collecting Sites
- Glad You Asked: What are Moqui marbles?
- The Rockhounder: Dugway Geode Beds, Juab County
- Glad You Asked: How Do Geologists Know How Old a Rock Is?
- Utah Faults
- Hazards Maps
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.
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