As darkness fell over a 64-square-mile wildfire that has left one person dead and damaged more than 100 structures in northern Colorado, flames that were largely obscured during the day by a grayish-brown haze of smoke stood out along a fire line that crept along the side of the charred foothills.

Unable to return home, evacuee Cy Johnson set up a stand in the back of a pickup truck to hand out water and sandwiches to fire crews. "You're doing something. At least you're doing something," he said.

Massive wildfires in drought-parched Colorado and New Mexico tested the resources of state and federal crews Monday.

Wyoming diverted personnel and aircraft from two fires there to help with the Colorado fire, and Canada lent two aerial bombers following the recent crash of a U.S. tanker in Utah.