File:Sessional papers of the Dominion of Canada 1905 (1905) (14776302374).jpg

Identifier: n11sessionalpaper39canauoft (find matches)
Title: Sessional papers of the Dominion of Canada 1905
Year: 1905 (1900s)
Authors: Canada. Parliament
Subjects: Canada -- Politics and government 1867- Periodicals
Publisher: (Ottawa : s.n.
Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: MSN

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er drainage channels, on the other hand, such asDuke and Slims river, possess large valleys and are bordered bywide flats, which extend, back into the range for many miles. Thecentral part of the St. Elias range is covered with almost continuoussnow fields, pierced in places by dark rocky points; smaller snow fieldssurvive the summer on all the principal mountain groups and ridges.Glaciers occur at the heads of all the principal streams. The greatKaskawulsh glacier, the largest in the district visited, descends fromthe central neve, and has a length of over twenty miles. Two largerivers issue close together from beneath this glacier, the Kaskawulsh,one of the main branches of the Alsek, and Slims river, one of thesources of the Yukon. Interlocking The country stretching northward and eastward from the St. Elias^* ^•^^ range is characterized by broad interlocking valleys enclosing moun- tain groups and ridges usually from 3,000 to 5,000 feet in height. diiiilodiral §uniru of (iiwuki
Text Appearing After Image:
GEOLOGICAL SURVEY DEPARTMENT Previousexploratic Topograii Interlockivallevs. SUMMARY REPORT SESSIONAL PAPER No. 26 The valleys are much older than the present drainage system. Theyhave a width of from two to five miles ^r more, are flat-bottomed, andare floored with glacial deposits. The rivers which occupy them atpresent flow in narrow secondary valleys seldom excavated to suflicientdepth to reach bed-rock. The great Shakwak valley at the foot of the St. Elias range is an ghakwakimportant topographic feature. Its origin is unknown. It is now valley,occupied by a number of diflferent streams and lakes and is crossedtransversely by the valley of the Dezadeash. Kluane lake, a largesheet of water forty miles long and three miles wide, with two arms,one twenty-seven miles in length, is situated in this depression.North-east of the upper end of Kluane lake are the Kluane hills, aworn ridge with an elevation of about 5,000 feet above the sea-These hills are bordered on the north by the wide

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