Raging flood waters are submerging Boulder, Colorado, and surrounding areas, where rescue operations are underway.
Colorado Flooding Causes Evacuations, Deaths
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John Hoffenberg watches the flow of water increase in Boulder, Colorado, Sept. 15, 2013.
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An aerial photo of a flood-affected area of northern Colorado along the Big Thompson River, Sept. 14, 2013. (U.S. Air National Guard Handout photo)
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An aerial view of vehicles submerged in flood waters along the South Platte River near Greenley, Colorado, Sept. 14, 2013.
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Children board a rescue helicopter flown by the U.S. Air National Guard after severe flooding shut down major roads leading out of Jamestown, Colorado, Sept. 14, 2013. (U.S. Air National Guard Handout photo)