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| Exploring the back side of a stone wall. It begins here, at the edge of a swampy area and extends over 400 feet. . |
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| This boulder is as large as a Volkswagon Bug automobile. I was surprised by the row of holes drilled along its length. |
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| Symmetrical design in the wall. |
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| Quartz tucked in a niche. |
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| Quartz |
