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Authors

Charles Keyes

Document Type

Research

Abstract

With the lower Minnesota valley blocked with ice, drainage from the waning Keewatin glacier, in southern Minnesota, would naturally be released into the Des Moines River, as indicated by the deep, gorge-like valley of the present stream above Des Moines City. Some recent observations on this phase of Iowa drainage are explained and charts presented. A now filled ancient channel is to be sought along the line of former long prairie lakes and the Blue Earth River, which in pioneer days formed part of the canoe-route of the trappers, from the head-waters of the Saskatchewan, in the Canadian Rockies, to the market in St. Louis.

Publication Date

1936

Journal Title

Proceedings of the Iowa Academy of Science

Volume

43

Issue

1

First Page

247

Last Page

247

Copyright

© Copyright 1936 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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