 There the ground levels out, and the combined SR 39 and SR 42 continue east, paralleling Mill Creek into Rockbridge County at Panther Gap.SR 39 and SR 42 continue to parallel Mill Creek from Panther Gap into Goshen, where SR 39 splits to the southwest and SR 42 turns northeast, crossing the Calfpasture River.It runs alongside some small creeks on its way to Bells Valley, and continues to follow small creeks into Augusta County.