[okie01]

There are four known airports in Northern Pakistan. This is extremely mountainous country, the Karakorum and the Hindu Kush, tucked between Jammu & Kashmir to the east and Afghanistan to the west.

Most of this area is cut off from the rest of Pakistan by high snow-filled passes for up to six months of the year (even as speak, I would imagine).

Those airports are:
............Longest
...........runway (ft)...Elev (ft)
Gilgit......5400........4900
Chitral.....5741........3600
Chilas......4500........4150
Skardu.....11944........8200

Of the four, Skardu is the easternmost and the most remote.

[exit82]

Skardu.....11944........8200

Of the four, Skardu is the easternmost and the most remote.

Even at that high elevation, the 12,000 feet would allow a loaded 777 to take off again. The other ones, not so much.

[cynwoody]

Simulated landing of a 787 at Skardu: https://www.youtube.com/watch?v=C9sbH5BUuNw