Photos provided by AP Photos.

Homes in residential neighborhood in Longmont, Colo., are submerged from flooding in the Front Range on Friday, Sept. 13. Thousands were forced to evacuate. The dayslong rush of water from higher ground has killed seven people and turned towns on Colorado's expansive eastern plains into muddy swamps.

Local resident Chris Rodes gets help from emergency responders as he helps salvage a friend's belongings after floods left homes and infrastructure in a shambles in Lyons, Colo. on Friday. Days of heavy rains and flash floods which washed out the town's bridges and destroyed the electrical and sanitation infrastructure left many Lyons residents stranded with minimal access to help, and sectioned off the town into several pieces not reachable one to the other.

This photo taken on Friday shows vehicles damages by flood waters on a street in Lyons. Access to the small mountain town was cut off after bridges were destroyed by flash flooding. Days of rain and floods have transformed the outdoorsy mountain communities in Colorado's Rocky Mountain foothills from a paradise for backpackers and nature lovers into a disaster area with little in the way of supplies or services. Roadways have crumbled, scenic bridges are destroyed, and most shops are closed.

A group of trailers are smashed together at a storage site near Greeley, Colo., on Saturday, Sept. 14, as debris-filled rivers flooded into towns and farms miles from the Rockies.

Will Pitner is rescued by emergency workers and neighbor Jeff Writer, left, after a night trapped sheltering outside on high ground above his home as it filled with water from a surge of water, after days of record rain and flooding, at the base of Boulder Canyon, Colo. on Friday in Boulder. The widespread high waters hampered emergency workers' access to affected communities.

A section of highway is washed out by flooding along the South Platte River in Weld County, Colorado near Greeley on Saturday. Hundreds of roads in the area have been damaged or destroyed by the floodwaters that have affected parts of a 4,500-square-mile area—an area the size of the U.S. state of Connecticut.

Boulder Creek roils at high speed after days of record rain and flooding, at the base of Boulder Canyon, on Friday. People in Boulder were ordered to evacuate as water rose to dangerous levels amid a storm system that has been dropping rain for a week. Rescuers struggled to reach dozens of people cut off by flooding in mountain communities, while residents in the Denver area and other areas were warned to stay off flooded streets.

Brother and sister Patrick Tinsley and Mary Kerns walk into Boulder, Colo., from their mountain community Magnolia, where road access is shut off by debris from days of record rain and flooding on Friday. People in Boulder were ordered to evacuate as water rose to dangerous levels.

Noe Sura, 7, right, and her brother Eli, 7, play in the mud clogged ground around their home after days of flooding, on the southern edge of Boulder, Colo. on Saturday. By air and by land, the rescue of hundreds of Coloradoans stranded by epic mountain flooding was accelerating as food and water supplies ran low, while thousands more were driven from their homes on the plains as debris-filled rivers became muddy seas inundating towns and farms miles from the Rockies.