text: Cooperative weather and the efforts of hundreds of firefighters helped beat back flames Sunday that had threatened hundreds of homes near a Southern California dam. Evacuation orders were lifted just before dawn for about 300 homes in an area along the border of the cities of Norco and Corona, about 35 miles southeast of downtown Los Angeles. By midday, fire officials said they had contained 25 per cent of the fire, which had grown to 1.5 square miles. Flames burn just after nightfall in the Prado Dam Flood Control Basin adjacent to homes, foreground, as seen from Corona, Calif. Cooler overnight temperatures and low winds allowed fire crews to attack the blaze, increasing containment from 15 per cent, though on-the-ground conditions did not make that fight easy. The fire burned in the Prado Dam Flood Control Basin, where vegetation has not burned in decades, according to Capt. Mike Mohler of the California Department of Forestry and Fire Protection. As a result, the area that is burning has up to 3 feet of 'duff' - needles, leaves and other combustible plant debris. Cooperative weather and the efforts of firefighters helped beat back flames Sunday that had threatened hundreds of homes near the Southern California dam . At the same time, California's drought means the basin has not held much water recently, Mohler said. Because the smoke was not blowing away, area residents were urged to stay indoors. The fire was reported shortly after 6 p.m. Saturday. Evacuation orders were lifted just before dawn for about 300 homes in an area along the border of the cities of Norco and Corona, about 35 miles southeast of downtown Los Angeles . On Sunday, about 500 firefighters were working the front lines, according to CalFire Capt. Liz Brown. So were two helicopters, though fixed-wing aircraft were not being used, she said. No property damage or injuries were reported, and the cause of the blaze was under investigation.
target: Evacuation orders were lifted just before dawn for about 300 homes in an area along the border of the cities of Norco and Corona .
  Officials said about 25 per cent of the flames were contained by middway .
  Cooler overnight temperatures and low winds allowed fire crews to attack the blaze, though on-the-ground conditions did not make that fight easy .