Firefighters battle Calif. wildfire

A damaged truck sits among other remains, Wednesday, Aug. 22, 2012, at a rural house site outside Manton, Calif., where a huge wildfire burned through on Saturday, forcing residents to evacuate. The Ponderosa Fire, which has scorched about 38 square miles, was 50 percent contained Wednesday morning, according to the California Department of Forestry and Fire Protection. The threat to homes about 35 miles east of Redding has dropped from 3,500 earlier this week to roughly 200 residences. (AP Photo/Jeff Barnard)
A damaged truck sits among other remains, Wednesday, Aug. 22, 2012, at a rural house site outside Manton, Calif., where a huge wildfire burned through on Saturday, forcing residents to evacuate. The Ponderosa Fire, which has scorched about 38 square miles, was 50 percent contained Wednesday morning, according to the California Department of Forestry and Fire Protection. The threat to homes about 35 miles east of Redding has dropped from 3,500 earlier this week to roughly 200 residences. (AP Photo/Jeff Barnard)

Air tankers and helicopters flew repeatedly into a deep rim rock canyon to douse the spearhead of a massive wildfire in Northern California and stop it from driving into a nearby mountain community and Lassen Volcanic National Park. (Aug. 24)