Video: Aerial footage of devastating Colorado floods Thousands of residents have been evacuated as major flooding hit a 4,500-square-mile area in the state of Colorado. Aerial footage shows people being taken to safety in inflatable rafts, as entire houses were submerged by rising floodwater. Cattle could be seen gathering on higher ground and some evacuees on horseback had to be escorted to safety through the deep water. Four people have died as a result of the floods and local media reports say 172 people remain unaccounted for.