The highest ridges of the Alleghenies are just west of the Front, which has an east/west elevational change of up to 3,000 feet (910m).  Absolute elevations of the Allegheny Highlands reach nearly 5,000 feet (1,500m), with the highest elevations in the southern part of the range. The highest point in the Allegheny Mountains is Spruce Knob (4,863ft/1,482 m), on Spruce Mountain in West Virginia. Other notable Allegheny highpoints include Thorny Flat on Cheat Mountain (4,848ft/1478 m), Bald Knob on Back Allegheny Mountain (4,842ft/1476 m), and Mount Porte Crayon (4,770ft/1,454 m), all in West Virginia; Dans Mountain (2,898ft/883m) in Maryland, Backbone Mountain (3360ft/1024 m), the highest point in Maryland; Mount Davis (3,213ft/979 m), the highest point in Pennsylvania, and the second highest, Blue Knob (3,146ft/959 m).