During the Gann Fire near Angels Camp in Calaveras County, California, on Tuesday, Aug. 4, 2026. Law enforcement arrested a suspect Monday following an investigation into the Gann Fire in Calaveras County. During the Gann Fire near Angels Camp in Calaveras County, California, on Tuesday, Aug. 4, 2026. Law enforcement arrested a suspect Monday following an investigation into the Gann Fire in Calaveras County. Cal Fire investigators have arrested a Valley Springs man on suspicion of recklessly causing the Gann Fire, the Calaveras County blaze that has burned 10,373 acres and destroyed seven structures since Monday.