Page:Field Notes of Junius Henderson, Notebook 5.pdf/6

 upper part. I judge from a distance that it is about 300 yds. long and 1000 yds. wide. The terminal lake shows no signs of rock flour, being quite clear, while that of Arapahoe is quite milky. I can now see them at the same time from the ridge and note the difference which is very marked. No fresh moraine shows as on Arapahoe, so there is very little movement in spite of the steepness. The cirque faces east, as Arapahoe does, with most of the present N?v? on the S side of cirque thus: ((drawing in field book)). A great quantity of fresh rock slide covers the upper part of the ice on NW corner just below the Boulder City monument on N. Arapahoe. While we rested at the monument, two tremendous slides occurred, rocks weighing many tons thundering down the steep walls of the cirque, one very large one bounding from a ledge to several hundred feet out onto the ice.