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Roger Williams National Memorial
Directions
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![A hiker is dwarfed by the huge, round, lichen-covered boulders of Old Rag Mountain. A hiker is dwarfed by the huge, round, lichen-covered boulders of Old Rag Mountain.](https://webarchive.library.unt.edu/eot2008/20090116093957im_/http://www.nps.gov/ner/customcf/apps/CMS_HandF/Pictures/SHEN_dyk_round_boulders.jpg) |
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Did You Know?
The large rounded boulders on the top of Old Rag, Shenandoah National Park’s most popular peak, were formed in place by chemical and physical weathering, called spheroidal weathering.
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Last Updated: September 19, 2007 at 16:56 EST |