Geologic Resources Division

Geologic Resources Division "Geology is the anatomy of scenery." - Robert Sterling Yard, Glimpses of our National Parks, 1915

Many parks were established to protect significant geological features, landforms, and viewsheds that frame the natural and cultural heritage of our nation. Park geological features include the world–renowned sculptured depths of Grand Canyon, the ancient fossils of Dinosaur National Monument, the longest recorded cave system in the world at Mammoth Cave National Park, the greatest density of arch

es in the world in Arches National Park, the world's largest and most colorful collections of petrified wood at Petrified Forest National Park, and over half of the known geysers in the world in Yellowstone National Park. Scientifically important fossil deposits are found in 243 parks, 81 parks contain 4,900 known caves, and another 40 parks have known karst systems. Ninety–seven parks protect 7,500 miles of shoreline, 52 parks contain geothermal systems, 38 parks have volcanoes as a major feature, and 37 have active glacial features. Park museum collections have more than 35,000 geological specimens and nearly 475,000 paleontological specimens.

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Denver, CO

Opening Hours

Monday 8:30pm - 4:30pm
Tuesday 8:30pm - 4:30pm
Wednesday 8:30pm - 4:30pm
Thursday 8:30pm - 4:30pm
Friday 8:30pm - 4:30pm

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