a long day going up the Fortress, and an unnamed outlier to the SE. Given there was a bear closure at Chester lake, Headwalls Lake valley it was! A beautiful hike in the the lakes. We went up the rocky rib to climber's right to avoid the snow and being under the large cornices at the Chester-Fortress col. We glissaded down on snow for a fast and fun descent. We then cut across to the SE, and headed up to the SE outlier by first reaching a col and then walking North along the ridge to the summit. All in all made for a long day with 21.2 km, and 1750 m of elevation gain.