NABSQNO 13S-477935-4271440An unnamed arch in Fremont County, Colorado Photo by Jay Wilbur NABSQNO 13S-477935-4271440. This small, but photogenic fin natural arch is located in Red Canyon Park, a city park north of Canon City, Fremont County, Colorado. Formed as the result of weak cementing between bedding planes of a sandstone conglomerate, it has a span of about 10 feet.
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