Heading some 80 kilometres ( 50 mi ) west up this valley one reached the Mintaka Pass , ( and 30 kilometres ( 20 mi ) further , the alternative Kilik Pass ) , which both led into upper Hunza from where one could travel over the infamous rafiqs or `` hanging passages '' to Gilgit and on , either to Kashmir , or to the Gandharan plains .
Heading some 80 km west up this valley one reached the Mintaka Pass , ( and 30 km farther , the alternative Kilik Pass ) , which both led into upper Hunza from where one could travel over the infamous rafiqs or `` hanging passages '' to Gilgit and on , either to Kashmir , or to the Gandharan plains .