Crawford Run is a long 1st order tributary to the Youghiogheny River in Allegheny County, Pennsylvania.
Crawford Run rises about 0.75 miles southwest of Hahntown, Pennsylvania, and then flows west and southwest barely into Allegheny County to join the Youghiogheny River at Robbins.
Crawford Run drains of area, receives about 39.4 in/year of precipitation, has a wetness index of 329.07, and is about 54% forested.