An unnamed arch in Natrona County,
Photo by Jay Wilbur
NABSQNO 13T-352422-4748266. This unnamed shelter natural arch is eroded through a ridge of sandstone. It is located near the Poison Spider oil field, about 20 miles west of Casper, Wyoming. It appears in the Vreeland catalog as number 19-9. He reports a span of 12 feet. A smaller arch is just east of this one, in the same ridge.
© 2007 by Jay H. Wilbur,
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