And regarding that sayangboche runway,
Ihe strip is dirt, heavily slopped and there is a shear cliff face at the far end. Unsure of length. But Amazing scenery!
I was so frustrated to see a runway of such poor quality in Our country, hence this thread. But see what i found!

This is lukla Airport. Not bad at all!!! quite tricky mountains there......I'd love to fly there....

Of Interest : Only pilots with over seven years of experience are allowed to land there