Spencer, Edgar W.  <br/><br/>
Valley and ridge and blue ridge traverse, Central Virginia  [eBook] 

 - Washington, D. C.  American Geophysical Union   1989 
 - Online resource 
 - Field Trip Guidebooks Series; v. 157 .
<br/><br/><label>ISBN: </label>9781118668269 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Blue Ridge TraverseCentral VirginiaRidgeValley