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| We found 14 results. | Page 1 of 4 |
  | The Mystery of Hanging Valley The remains of a Little Sioux River floodplain raise the question of how the valley was formed. -related clips |
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 | Mount Rainier, Washington - Glacier View Pulled by the force of gravity, glaciers are rivers of ice that continually carve down mountainsides, altering the landscape. -related clips |
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 | Missoula Flood - Part 1 During the ice age, glacial ice dams across the Northwest caused rivers to flood on a massive scale, leaving topography that resembles a giant riverbed. -related clips -teacher resources |
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 | San Juan Mountains, Colorado - Alpine Lake and Meadow Blue larkspur, yellow paintbrush, red mountain sorrel and delicate purple columbine flowers pepper the alpine meadow with color seen only in the summer. -related clips |
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| We found 14 results. | Page 1 of 4 |
