Just in the woods off the road here is an outcrop of the Alligator Back Formation which is made up of 90% tremolite and actinolite schist with amphibole needles aligned. Th ultramaphic rocks surround an amphibolite core. The age is Proterozoic to Cambrian. Stop 27 Carter et al.
References
Page 47 - Carter, M. W., et al., 2017, Geology along the Blue Ridge Parkway in Virginia: Geol. Soc. Am. Field Guide 47, p. 1 - 58.
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