Blue Ridge Mountains also Blue Ridge A range of the Appalachian Mountains extending from southern Pennsylvania to northern Georgia. The range rises to 2,038 m (6,684 ft) at Mount Mitchell in the Black Mountains of western North Carolina.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Blue Ridge Mountains pl n (Placename) a mountain range in the eastern US, extending from West Virginia into Georgia: part of the Appalachian mountains. Highest peak: Mount Mitchell, 2038 m (6684 ft) Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014