Here are the Team SOH 2012 briefing notes for lovely Narsarsuaq (aka Bluie West One)
At the end of that first summer of 1941, civilians in the employ of McKinley Dredging Co. arrived to finish the runway at Bluie West One. It would be 5,000 feet long and 145 feet wide, with a base of pea-sized gravel and a surface of pierced-steel planking--perhaps the first use of PSP by the U.S. military. The compass direction is pretty much west to east: 07 and 25. However, the magnetic deviation in south Greenland is 30 degrees, so the direction actually runs from southwest to northeast. At the southwest or fjord end, the altitude is 12 feet above sea level; it rises 100 feet in about half a mile, then levels off as it nears the glacier.
"If you haven't landed at BW-1," writes army pilot George James of his ferry flight in a twin-engined B-26, "you have missed one of life's biggest thrills. We were briefed for hours with talks, movies taken from the nose of an airplane, and a topographical model. The reason for what might seem like overkill is that BW-1 is 52 miles up a fjord with walls several thousand feet high, numerous dead-end offshoots, no room to turn around, and usually an overcast below the tops of the walls. You had to get it right the first time."
General Spaatz:
Overall, navigation was so tough that he thought it might be a good idea to paint the rocks along the fjords leading up to the Greenland airfields.
Misadventure took care of that problem with respect to BW-1. On July 6, the supply ship Montrose hit a cliff while steaming up Eriksfjord. Sixteen nautical miles southwest of the airfield, its rusting hull became a checkpoint for pilots hoping to reach Bluie West One.
http://www.warbirdforum.com/bluie1.htm
Attachment 58491
http://www.398th.org/Images/Images_GettingThere/Text/Stops_BluieWest.html
http://www.398th.org/History/Veterans/History/Traeder_BluieWest.html
You do NOT want to end up like this:
http://www.398th.org/Images/Images_Aircraft_B-17/Aircraft/43-39085_19441229_HT.html
Notes:
1) The above photo was taken from just about the same spot where an un-named SOH pilot buried a P-38 a few years ago. It's about 2 miles from the threshold, but, as you can see, at much higher elevation.
2) Yes, in good weather, with modern aircraft an approach can be made (VFR) down the glacier (and it is a slope all the way to the runway) AND a departure (light) can go uphill to the east in FS.
3) the weather at the open end of the fjord can be lovely VFR, but the further inland you go, usually the worse it gets. It's not uncommon, even in FS, to not see the runway until you turn final below the cliff (which is 'easier' in the sim than r/l)