Geology of Arches National Park | U.S. Geological Survey
Pennsylvanian (286 to 320 million years ago) through Cretaceous (66 million years ago) sedimentary rocks are exposed in Arches National Park, representing marine, nearshore, and continental …
Geologic Formations - Arches National Park (U.S. National Park Service)
Apr 18, 2025 · Little by little, this process turns fractured rock layers into fins, and fins into arches. Arches also emerge when potholes near cliff edges grow deeper and deeper until they wear through …
Geology | Canyonlands Natural History Association - CNHA
The complex 300 million-year story of the formation of the rock wonders in Arches National Park features powerful tectonic movements, retreating and advancing seas, flowing salt deposits, faulting, …
Arches National Park | GEOSC 10: Geology of the National Parks
Arches National Park is just outside of Moab, Utah, almost within shouting distance of Canyonlands. Arches National Park has the largest concentration of natural stone arches in the world, with dozens …
The History and Geology of Arches National Park
Welcome to our comprehensive guide on the history and geology of Arches National Park. Situated in the heart of Utah, this iconic national park is home to over 2,000 natural sandstone arches, stunning …
Geology of Arches National Park | Utah Guide
Arches National Park in Utah is an area of incredible natural beauty that has been formed over millions of years by the forces of wind, water and gravity. This spectacular land is part of the Colorado …
Arches Fact Sheet | Blog | Nature | PBS
Nov 24, 2025 · Arches National Park is a red-rock wonderland and geological playground boasting thousands of natural stone arches, soaring pinnacles, massive fins, and balanced rocks scattered …
Geology of Arches - National Parks Traveler
Aug 16, 2024 · As Park Service geologists explain this landscape, Arches lies atop an underground salt bed called the “Paradox Formation” that is responsible for the arches, spires, balanced rocks, fins …
Geologic Column of Arches National Park Geology
About ten million years ago water began to exert its influence on the landscape of Arches National Park. While the entire region was uplifted several thousand feet, the Colorado and Green Rivers started to …
Research Guides: EARTHSC 1105: Arches National Park
The geologic story of Arches National Park, located in eastern Utah, begins roughly 65 million years ago. At that time, the area was a dry seabed spreading from horizon to horizon. The striking red rock …