DSCN3113
Boulder of the phonolite porphyry that makes up the tower. The large white crystals are feldspar. Devils Tower National Monument.
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Uploaded on August 8, 2016
Taken on July 29, 2016
DSCN3113
Boulder of the phonolite porphyry that makes up the tower. The large white crystals are feldspar. Devils Tower National Monument.
45
views
0
faves
0
comments
Uploaded on August 8, 2016
Taken on July 29, 2016