The first mountaineering trip of the season. We climbed the North Ridge of Lyell 4(Walter Peak), pictured to the right. It is a classic snow and ice ridge with one rock step. At 5.4, it is relatively easy and on good rock. It is the most difficult of the Lyell Peaks to ascend. We had skis along for the approaches and also ski the summit of Lyell 5 (Christian Peak). We had some great corn skiing on the way down. Although summer mountaineering is here, there will be skiing for quite a while on the glaciers.