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16 Too Rugged for Reys
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 Photo Info
Posted By: Hal Brown
Date Posted: Sep 16, 2008
Description: Streams of water came out of the cliffs. The thin flows of basalt on top of the underlying rhyolite are extremely permeable to water due to vertical fractures. They devour surface water. It keeps the surface desert dry.

Rain water penetrates only to the top of the deeper rhyolite. From there it moves slowly to the canyon walls of the Snake River. Before extensive groundwater pumping, springs lined the canyon walls.

On the opposite shore was the Hagerman Fossil Beds National Monument (http://www.nps.gov/hafo/). It is mostly notable for horse fossils (from the Pliocene, 3.5 millions years ago) pre-dating the Ice Age.

Horses? In North America before the Europeans arrived? So it is said. They all died out at the end of the Ice Age (about 10,000 to 12,000 years ago). What killed the American horses? Climate change? Native American hunters? Take your best guess and go with it.

Date Taken: Sep 16, 2008
Place Taken: Near Hagerman, ID
Owner: Dan Nickens
File Name: 15_Groundwater_Falls.jpg   - Photo HTML
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Thumbnail - <img src="/show.php?splash=SZTAE0000s">
Category: 329, Taking Peli Home
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