Rincon Valley fire captain Fred Leunberger watches as a pine tree torches out on the head of the Yellow fire above Knights Valley, Calif., Wednesday, May 1, 2013. The fire started early Wednesday morning on the rugged border between Napa and Sonoma Counties and roared through tall stands of pine trees. Crews were securing the perimeter of the fire in the afternoon. (AP Photo/Santa Rosa Press Democrat, Kent Porter)