Cover image for Glacial Lake Missoula : and its humongous floods
Glacial Lake Missoula : and its humongous floods
Alt, David D.
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Publication Information:
Missoula, Mont. : Mountain Press Pub., [2001]

Physical Description:
viii, 199 pages : illustrations ; 23 cm
1. Truly an inland sea : Glacial Lake Missoula -- 2. A window into the past : a visit to Glacial Lake Missoula -- 3. A heretic in the scablands : J. Harlen Bretz and his humongous flood -- 4. Where did the water come from? : J.T. Pardee returns to Glacial Lake Missoula -- 5. Hard and distinctive bedrock : belt rocks -- 6. The once and repeating ice dam : several dozen lakes -- 7. Setting the stage for the big spectacle : the Little Bitterroot Valley -- 8. A question of scale : the giant ripples of Camas Prairie -- 9. A most extraordinary basin : Rainbow Lake -- 10. Ice, water, and a river : the Mission Valley, the Jocko Valley, and the Flathead River -- 11. The unscathed valleys : the Bitterroot and Missoula Valleys -- 12.The tightest squeeze : Hellgate Canyon and the Saddle North of Mount Jumbo -- 13. The water route to paradise : down the Clark Fork River to the Flathead River -- 14. Taking the measure of the drainage currents : the Clark Fork River between Paradise and Sandpoint -- 15. Gateway to the Scablands : Rathdrum Prairie -- 16. Floods of basalt : lava flows and crustal arches -- 17. Moses Coulee : Okanogan ice and Glacial Lake Columbia -- 18. The grandaddy Scablands : the Cheney-Palouse and Telford-Crab Creek Floodways -- 19. Regulating Glacial Lake Columbia : Grand Coulee -- 20. The shortcut to the Snake River : the Palouse river, Palouse Falls, and Washtucna Coulee -- 21. The gathering of the waters : beyond the Cheney-Palouse Scabland -- 22. The grand emptying : floodwater exits the Quincy Basin -- 23. A patchwork of valleys : Lake Lewis -- 24. The archives of the floods : the Touchet formation -- 25. The way west : through Wallula Gap and into Lake Condon -- 26. Another tight squeeze : the Columbia Gorge -- 27. A sudden rush of water : scouring through Portland -- 28. The inland bay : floods in the Willamette Valley -- 29. The last lap : on to the Pacific Ocean -- 30. Dusting off the crystal ball : could it happen again?
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QE697 .A48 2001 Adult Non-Fiction Non-Fiction Area

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The story of colossal Ice Age floods that reshaped the Northwest and fostered new geologic thought.When geologist J Harlan Bretz walked the dry scabland channels of eastern Washington in the 1920s, he realized he was viewing a landscape sculpted by wate

Table of Contents

Prefacep. vii
Introductionp. 1
1 Truly an Inland Sea: Glacial Lake Missoulap. 7
2 A Window into the Past: A Visit to Glacial Lake Missoulap. 11
3 A Heretic in the Scablands: J Harlen Bretz and His Humongous Floodp. 15
4 Where Did the Water Come From? J. T. Pardee Returns to Glacial Lake Missoulap. 21
5 Hard and Distinctive Bedrock: Belt Rocksp. 23
6 The Once and Repeating Ice Dam: Several Dozen Lakesp. 25
7 Setting the Stage for the Big Spectacle: The Little Bitterroot Valleyp. 33
8 A Question of Scale: The Giant Ripples of Camas Prairiep. 37
9 A Most Extraordinary Basin: Rainbow Lakep. 41
10 Ice, Water, and a River: The Mission Valley, the Jocko Valley, and the Flathead Riverp. 49
11 The Unscathed Valleys: The Bitterroot and Missoula Valleysp. 59
12 The Tightest Squeeze: Hellgate Canyon and the Saddle North of Mount Jumbop. 65
13 The Water Route to Paradise: Down the Clark Fork River to the Flathead Riverp. 73
14 Taking the Measure of the Drainage Currents: The Clark Fork River between Paradise and Sandpointp. 81
15 Gateway to the Scablands: Rathdrum Prairiep. 87
16 Floods of Basalt: Lava Flows and Crustal Archesp. 95
17 Moses Coulee: Okanogan Ice and Glacial Lake Columbiap. 99
18 The Grandaddy Scablands: The Cheney-Palouse and Telford--Crab Creek Floodwaysp. 109
19 Regulating Glacial Lake Columbia: Grand Couleep. 115
20 The Shortcut to the Snake River: The Palouse River, Palouse Falls, and Washtucna Couleep. 123
21 The Gathering of the Waters: Beyond the Cheney-Palouse Scablandp. 129
22 The Grand Emptying: Floodwater Exits the Quincy Basinp. 133
23 A Patchwork of Valleys: Lake Lewisp. 143
24 The Archives of the Floods: The Touchet Formationp. 147
25 The Way West: Through Wallula Gap and into Lake Condonp. 151
26 Another Tight Squeeze: The Columbia Gorgep. 159
27 A Sudden Rush of Water: Scouring through Portlandp. 167
28 The Inland Bay: Floods in the Willamette Valleyp. 171
29 The Last Lap: On to the Pacific Oceanp. 177
30 Dusting Off the Crystal Ball: Could It Happen Again?p. 179
Epiloguep. 181
Glossaryp. 183
Selected Bibliographyp. 185
Indexp. 193