 SR 39 and SR 42 leave the Cowpasture River and enter the valley of Mill Creek, which the highways and a CSX rail line follow through the gap in Mill Mountain at which they enter Rockbridge County and the town of Goshen and continue as Maury River Road.Just north of the center of town, SR 39 Alternate splits to the south as Main Street.SR 42 (Virginia Avenue) splits to the north immediately before SR 39 passes under another rail line and crosses Mill Creek just above its confluence with the Calfpasture River.