Firefighters made significant progress Tuesday against the Knight fire, a 5,000-acre blaze burning north of Twain Harte in Tuolumne County.
The California Department of Forestry and Fire Protection reported 50 percent containment this morning after crews completed fire lines on the west end to the Stanislaus River.
They also set fires inside the lines to consume heavy brush and undergrowth in the rugged area near Mount Knight. The fire began July 26; a cause has not been determined.
About 5,100 acres have burned, and personnel levels have dropped to 926, down from more than 1,000.