NABSQNO 10T-574582-4943935
An unnamed arch in Linn County, Oregon
Photo by Jay Wilbur
NABSQNO 10T-574582-4943935. This unnamed arch is a buttress natural arch eroded through andesite. It is located in the Willamette National Forest, south of Idanha, Linn County, Oregon. It was listed in the Vreeland catalog as number 20-25, with a reported span of 10 feet.
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