We started down from north spur by way of south spur at 3 p.m., thus entirely circling the cirque, but changed our minds and worked down on the west side so as to pass through the narrow gap W of the south spur. On N side of gap we found one snow bank and on S side 2 banks which illustrate the formation of straight or semi-circular ridges of angular rock, unmixed with mud, found at the foot of steep slopes in all these canyons and closely resembling terminal moraines in form but plainly not glacial, The rock simply slides over the snow and lodges at the foot of the bank thus ((drawing in notebook)) then when the snow melts back it isolates the slide rock from the hill slope. Such mud as occurs is plainly surface mud from the snow, mingled with vegetable particles. Reached gap at 4 p.m. Got horses hitched and started for Eldora at 5:05 arriving at 6:30 p.m. At 12:30, while eating lunch, we
