1. 
   Backbone Mountain
   highest point in Maryland, U.S., reaching an elevation of 3,360 feet (1,024 metres). It is located on a ridge of the Allegheny and Appalachian ... [2 related articles]
   Found op http://www.britannica.com/eb/a-z/b/3
   
   
2. 
   Backbone Mountain
   Backbone Mountain is a ridge of the Allegheny Mountains of the central Appalachian Mountain Range. It is situated in the U.S. states of West Virginia and Maryland and forms a portion of the Eastern Continental Divide. Its summit is the highest point in the state of Maryland. ==Description and geogr...
   Found op http://en.wikipedia.org/wiki/Backbone_Mountain
   
   
3. 
   Backbone Mountain
   Backbone Mountain, peak, 3,360 ft (1,024 m) high, NW Md., in the Allegheny Mts.; highest elevation in the state.
   Found op http://www.infoplease.com/ce6/us/A0805664.html
   
   

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