This is PR ARPW20 3830 emerging from summit Tunnel at Kolpur, at 1800 meters above Sea Level on the Mushkaf Bolan Pass section of Pakistan Railways. This (once highly strategic) line with its 1:25 gradients through the remote Dozan Gorge belongs to the most spectacular railway achievements on Earth. Deep in the Balochistan Province, this area is nowaday off-limit to foreigners...