Superb photos - thanks to all who contribute.
Someone asked about the flat top in the Baffin Island photo in post 5444. My son (who knows about this kind of stuff) tells me that it is the North Tower of Mount Asgard and is well know as a place for base jumping.
I also found this from Wikipedia:
"In 1976, stuntman Rick Sylvester performed a BASE jump, skiing off the mountain with a Union Flag parachute for the opening sequence of the James Bond film The Spy Who Loved Me, although the fictional setting was the Austrian Alps. The stunt team and film crew had made their ascent by helicopter."