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Pinedale Online:Photo Gallery:Dave Bell:Glacier National Park--Hike From Many Glacier To Ptarmigan Tunnel:Grinnell Argillite Means Red Trails

Grinnell Argillite Means Red Trails. Photo by Dave Bell.
© Photo by Dave Bell
Grinnell Argillite Means Red Trails

Geologists say that all the rocks in Glacier are over one-billion years old. Older than me! Grinnell Argillite is a predominant rock formation throughout the park and its eroding qualities contribute bright red scree to valley floors and stream bottoms throughout the park.`

All photographs used on this page are copyrighted by Dave Bell, © 2001-2009, and are used with permission by Pinedale Online. All rights reserved. May not be used without permission. To contact Dave, please e-mail:

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