Shutting the door to my van, I stepped out into the misty darkness of a pre-dawn Glen Spean. The previous day had yielded temperature inversion conditions, and with the forecast suggesting more of the same, I was hopeful. I was here to climb two Munros on the north side of the Glen, so I set off into the hills to try and get above the clouds. At about 650 m above sea level, the gloom started to lift as the mist warmed in colour. Then, all of sudden, in just a matter of steps, the clarity was turned to 100% and I found myself looking out at an ocean of pink cloud, penetrated by islanded mountains. It was the most extensive display of a cloud inversion I had ever seen, with what seemed like of all of lowland Scotland under thick fog. As I continued up, past the first summit, a herd of sheep came into view, with one positioning itself perfectly under the twin pyramids of Stob Coire Easain and Stob a'Choire Mheadhoin - which are collectively known as The Easains.