^ h'"/ y <i. 



CONTENTS. 



Page. 



Letter of transmittal xvii 



Preface xix 



Abstract of volume xxi 



Chapter I. — Introduction 1 



Basin of the Red River of the North ami of Lake Winnijieg 1 



The Glacial Lake Agassiz 2 



Relationship to the ice-sheet 3 



Early ohservations of Lake Agassiz 6 



Work reporteiT in this monograph 7 



Chapter II. — Topography of the basin of Lake Agassiz 14 



Outlet, bed, and sliores of Lake Agassiz 15 



River Warren 15 



The Red River Valley 19 



Shore-lines 26 



Deltas 27 



Dunes 28 



Wooded region of northern Minnesota and of Manitoba and Keewatin, jjartly covered 



by this lake 29 



Country bordering Lake Agassiz on the east 30 



Giants Range 31 



Mesabi Range 31 



Mesabi and Itasca moraines 32 



Leaf Hills 33 



Country west of Lake Agassiz 34 



The Coteau des Prairies 36 



Ascent from the Red River Valley in North Dakota 39 



The Manitoba escarpment 40 



Pembina Mountain 40 



Tiger Hills 42 



Riding and Duck mountains 42 



Porcupine and Pasqnia hills 43 



Great Bear Hills 44 



Forest and prairie 44 



Existing lakes within the area of Lake Agassiz 46 



Lake Winnipeg 47 



Lakes Manitoba and AVinnipegosis 48 



Rainy Lake 49 



Lake of the Woods 49 



Red Lake 49 



V 



