BY A. N. LEWIS, M.C. 35 



near the spot where the old Dobson-Belcher track crossed 

 the Humboldt Creek, the water has cut about six feet into 

 the glacial till, and falls in a cascade a few feet high over 

 a layer of this boulder clay that has solidified sufficiently 

 to cause the waterfall, and is almost conglomerate. The 

 matrix is of sand, requiring a hammer to break it, and 

 lying embedded in it are pebbles and cobbles of all sizes. 

 They are absolutely unsorted, and have been worn by the 

 glacier. One was found in the shape of a pyramid, but 

 striae, if they were ever developed on the diabase, have 

 since rusted away. Perhaps this spot would be a likely 

 place to search for ice-marked pebbles. 



Lake Belton presents rather a problem. It appears to 

 have been the work of two glaciers. The inner, or north- 

 west, end is certainly a rock basin, scooped out by the 

 glacier descending the gully that stands at its head, while 

 the lower end is certainly impounded by a moraine that 

 looks to be the work of the southern glacier. This moraine 

 also extends the whole length of the eastern shore, and 

 appears to have been formed either from a line of small 

 glaciers or on the end of an extremely wide ice flow drop- 

 ping down from Tyenna Peak and the Florentine Peaks. 

 Perhaps this represents the melting point of several glaciers 

 during their later stage, while a main glacier passed down 

 the bottom of the valley, deepening that, and leaving Lake 

 Belton as a hanging valley 300 feet above. 



The moraine on the eastern shore of Lake Belton 

 stands 20 or 30 feet above the slope of the hill, and is 

 100 yards in width, containing many charming pools and 

 tarns. Below Lake Belton the slope of the hill is strewn 

 with morainal material, as if the melting glacier tipped 

 its load down the hillside. The configuration suggests that 

 at a period of maxim.um glaciation a large glacier filled 

 the valley to a point level with Lake Belton anil, its cor- 

 responding ridge on the eastern slope, scooping out a U- 

 shaped floor in this large valley. Then, as the ice flows 

 shrank, a small glacier cut out a second U within the 

 larger one, at the bottom of the valley, while tributaries 

 melting on the side of the hill were responsible for Lake 

 Belton, making this latter lake an example, if a poor 

 one, of a hanging valley. 



(b) The Lake Hayes Valley. 

 North of K. Col, a shorter glacier, growing from more 

 limited snowfields, was responsible for the tremendous gulch 



