Veins of Harder Silica Rise out of the Sandstone

One of the stranger phenomenon to be seen at Valley of Fire State Park in Nevada. Silica seeped into cracks in the sandstone, and now erodes much more slowly than it.
Text and Photographs by Thomas M. Tuerke, unless indicated otherwise.
Contents copyright (c) Thomas M. Tuerke, 1997-2002.
All Rights Reserved.