05-01-2009, 03:36 AM
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#17559 (permalink)
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Riding the Ocean Spray
Location: S.E. PA in U Sofa
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Sometimes I'm a slab.
The longest natural rock span in the world, this arch's opening is 306 feet wide - 6 feet longer than a football field. A nine story building would easily fit beneath this thin span. In 1991, a massive slab of rock fell from its underside, resulting in an even thinner ribbon of rock.
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