Blowing snow

Sitting below the top of a smallish but hard-won hill, on a day with a gusty arctic wind and snow and ice underfoot. We had a sheltered spot for our lunch and even felt a bit of warmth when the sun came out - and then this blew through.
We're on Mor Bheinn, outside Comrie in Perthshire, and the hill in the background is Beinn Dearg. How many Mor Bheinns (or Ben Mores - Big Hill however it's spelled) and Beinn Deargs (Red Hill) are there in Scotland?