The new Karakoram Highway heads farther south , and then west over the Khunjerab Pass ( 4,934 m or 16,188 ft ; 36 Â 51 ' N ; 75 Â 32 ' E ) . The new Karakoram Highway heads further south , and then west over the Khunjerab Pass ( 4935 m ) ; 36 Â 51 ' N ; 75 Â 25 ' E ) .