﻿I'lc. I. — Lake of tlic Hanging Glaciers. This represents :i t\i)Ral \allc\ glacur iliat himniah •, \u a lake wliere the ice front cahes or breaks olT and lloats a\va\ in tin- I'urni 

 of ice lloes or miniature icebergs. The main glacier is fed by the snow and ice that fall from tiie small surrounding glaciers that cling to the slopes of the surrt)unding iiioun- 

 laiiis. This is a beautiful glacial view just at timber line in one of the wildest spots in the mountains west of Lake Windermere in the Columbia River Valley, British ("olumbia. 

 ( W'aieott, 1923.) 



Rcdoiiljt Mountain 

 (9,510') 



Ptarmigan Peak 

 (10,060') 



Fossil Mountain 

 (9.655') 



I'Ki. 2. — A mountain view northeast of Lake Louise Si.iUun uii tlie Canadian Pacific Railway. Baker Lake (/.^Ji feet, 2231.4 m.) at the foot of L^ossil Mountain (9,655 feet, 

 2942.8 m.) ; Ptarmigan Peak (10,060 feet, 3066.2 m.) in tlie distant center; Redoubt Mountain (9,510 feet, 2898.6 m.) on the left in the distance, and the slope of Brachiopod 

 Mountain on the extreme left. ,'\11 In the Province of .\Iberta. 



The Lower Cambrian and Pre-Caiubrian rocks of Ptarmigan Peak have been thrust eastward and now lie above the much later Devonian rocks of Fossil Mountain. The 

 crest of Fossil Mountain is a syncline or basin of limestone caused by the pressure of the rocks from the westward. (Walcott, 1923.) 



