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Devils Tower, rising 867 feet from its base,
is an excellent geologic example of an igneous
intrusion, exposed by the erosion of sedimentary rock.
Copyright DBBeierle Permission to use photographs is required! Thanks
Long Bach Nguyen | 19-Apr-2009 07:05 | |
Eddie Fisher | 04-Oct-2008 07:49 | |
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Roger LeBlanc Photography | 22-Sep-2008 22:52 | |
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