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Rain-swollen Boulder Creek flows around a marker that shows historic flood levels on Friday morning, Sept. 13, 2013, in Boulder, Colo. City officials ordered an evacuation of thousands of residents along the creek the night before. Coffee-colored floodwaters cascaded downstream from the Colorado Rockies on Friday, spilling normally scenic mountain rivers and creeks over their banks and forcing thousands more evacuations(AP Photo/Ben Neary)