Glacial Lake Missoula and Its Humongous Floods
Table of Contents
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Introduction: A Glacial Lake, the Fertile Palouse Hills,
the Barren Scablands
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1
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1. Truly an Inland Sea
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Glacial Lake Missoula
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7
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2. A Window into the Past
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A Visit to Glacial Lake Missoula
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11
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3. A Heretic in the Scablands
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J Harlen Bretz and His Humongous Flood
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15
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4. Where Did the Water Come From?
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J. T. Pardee Returns to Glacial Lake Missoula
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21
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5. Hard and Distinctive Bedrock
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Belt Rocks
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23
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6. The Once and Repeating Ice Dam
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Several Dozen Lakes
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25
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7. Setting the Stage for the Big Spectacle
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The Little Bitterroot Valley
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33
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8. A Question of Scale
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The Giant Ripples of Camas Prairie
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37
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9. A Most Extraordinary Basin
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Rainbow Lake
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41
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10. Ice, Water, and a River
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The Mission Valley, the Jocko Valley, and the Flathead River
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49
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11. The Unscathed Valleys
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The Bitterroot and Missoula Valleys
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59
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12. The Tightest Squeeze
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Hellgate Canyon and the Saddle North of Mount Jumbo
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65
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13. The Water Route to Paradise
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Down the Clark Fork River to the Flathead River
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73
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14. Taking the Measure of the Drainage Currents
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The Clark Fork River between Paradise and Sandpoint
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81
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15. Gateway to the Scablands
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Rathdrum Prairie
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87
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16. Floods of Basalt
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Lava Flows and Crustal Arches
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95
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17. Moses Coulee
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Okanogan Ice and Glacial Lake Columbia
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99
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18. The Grandaddy Scablands
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The Cheney-Palouse and Telford-Crab Creek Floodways
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109
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19. Regulating Glacial Lake Columbia
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Grand Coulee
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115
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20. The Shortcut to the Snake River
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The Palouse River, Palouse Falls, and Washtucna Coulee
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123
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21. The Gathering of the Waters
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Beyond the Cheney-Palouse Scabland
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129
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22. The Grand Emptying
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Floodwater Exits the Quincy Basin
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133
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23. A Patchwork of Valleys
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Lake Lewis
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143
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24. The Archives of the Floods
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The Touchet Formation
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147
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25. The Way West
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Through Wallula Gap and into Lake Condon
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151
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26. Another Tight Squeeze
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The Columbia Gorge
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159
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27. A Sudden Rush of Water
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Scouring through Portland
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167
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28. The Inland Bay
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Floods in the Willamette Valley
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171
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29. The Last Lap
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On to the Pacific Ocean
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177
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30. Dusting Off the Crystal Ball
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Could It Happen Again?
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179
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Epilogue
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181
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Glossary
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183
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Selected Bibliography
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185
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Index
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193
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