What is the tallest mountain in the Allegheny mountain range?
Allegheny Mountains
{'answer_start': array([-1]), 'answer_text': array([''], dtype=object)}
Trans-Allegheny travel had been facilitated when a military trail—Braddock Road—was blazed and opened by the Ohio Company in 1751. (It followed an earlier Indian and pioneer trail known as Nemacolin's Path.) Braddock Road connected Cumberland, Maryland (the upper limit of navigation on the Potomac River) and the forks of the Ohio River (the future Pittsburgh, Pennsylvania). It received its name from the British leader of the French and Indian War (1754–63), General Edward Braddock, who led the ill-fated Braddock expedition four years later.[19]