The Walker Fire burning in the Plumas National Forest has now burned more than 38,000 acres, or nearly 60 square miles. There is a mandatory evacuation in place for people living along U.S. 395 from Thunder Mountain Road to Laufman Grade at Old California 59, including Milford and Brockman Canyon. Also Antelope Lake to the Plumas County line, Ward Creek and the Genesee Valley road corridor. The fire started around midnight on Sept. 4, The cause remains under investigation. The fire is 7 percent contained.