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Mission
Mission |
![]() The Narrows in Zion National Park was created by a river cutting through softer sediment and leaving walls of harder rock behind. You can wade up the river and admire the results. Sediment (rocks and minerals) were deposited over the Utah region for hundreds of millions of years. An ancient ocean existed here, as well as seas, tidal flats and deserts. These changing environments left behind layers of different types of earth and rock. ![]() Hoodoos are formed when erosion
from wind and water cut down into the layers of
rock leaving statue-like formations. In order for a
hoodoo to form there must be a cap rock. This is a
rock that is strong enough to survive the elements
and can protect the soil beneath it from being
washed away. This photo shows the muddy
colored water that results when the reddish
sandstone soils are eroded and flow into creeks and
rivers.
Environmental Volunteers 3921 E. Bayshore Rd., Palo Alto, CA 94303 (650) 961-0545, (650) 961-0548 fax www.EVols.org, info@EVols.org Copyright © 2000 - 2009, Kahncious Multimedia. All rights reserved. |
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