Shenandoah National Park, Virginia. Columnar jointing in greenstone. Small wavy columns at the top of the cliff above the Appalachian Trail about 0.15 mile north of Hawksbill Gap.
Summary
Shenandoah National Park, Virginia. Columnar jointing in greenstone. Small wavy columns at the top of the cliff above the Appalachian Trail about 0.15 mile north of Hawksbill Gap. Figure 9 (left), U.S. Geological Survey Bulletin 1265.
Summary
Shenandoah National Park, Virginia. Columnar jointing in greenstone. Small wavy columns at the top of the cliff above the Appalachian Trail about 0.15 mile north of Hawksbill Gap. Figure 9 (left), U.S. Geological Survey Bulletin 1265.
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