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Arches National Park
Environmental Factors
 
The roots of a blackbrush exposed by soil erosion
NPS Photo by Neal Herbert
The roots of a blackbrush exposed by soil erosion
 

Although Arches may appear harsh and unchanging, the desert ecosystem is continually evolving. Weather, climatic shifts and geologic processes continue to shape this environment as they have for millennia.

More recently, human-caused factors such as air, noise and water pollution, as well as introduced species, have had a much greater impact on natural resources world-wide.

The undeveloped landscape of Arches provides an ideal place to study how various environmental factors affect desert ecosystems, and predict what changes might be expected in the future.

Courthouse Wash
Tamarisk
This exotic has invaded the Colorado River and all its tributaries
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Cheatgrass
Cheatgrass
Transforming landscapes throughout the American west
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Landscape Arch

Did You Know?
Landscape Arch is the longest Arch in Arches National Park, measuring 306 feet from base to base. In 1991, a massive slab of rock fell from its underside, resulting in an even thinner ribbon of rock.

Last Updated: January 22, 2010 at 10:51 MST