Before the milder weather arrived, we ran the Friday night bothy run from Glasgow to Newtonmore, then up early amongst the pines of the Sugarbowl into the Chalamain Gap and the Lairig Ghru. Lurcher's Crag provided an icy gully, sunny belays and views across to Braeriach's plateau S-carved with skiers. We meandered down snow-wisped slopes of Creag an Leth-choin, back to Aviemore for the night. Strathnairn was next day's choice for some sunny bouldering, of course the Ruthven Boulder was the target after a visit to see the Farr boulder. A walker on his way up Stac Gorm called the uniquely rough gneiss 'Strathnairn granite' and noted to us that it necessitated wearing gloves if you were building a wall, as it tore the skin from your tips. We noted that too after an hour or so, as well as a general wilting of power on the butch bouldering on this world-class stone. Here's a short guide to the stone: The Ruthven Boulder Ambience: steroid bloc...