Cairngorm Club overnight meet. We went by coach to Bridge of Orchy where tea was had. We took the train to Corrour. Initially I was with many other members, but continued alone from Glen Labhair. We went along the N. side of Loch Ossian to Glen Labhair. I ascended Beinn a' Chumhainn, getting to the summit at 23:15. I descended a little to S and stopped for the night.