BLY, Ore.—Firefighters in Oregon reported good progress in the battle against the nation’s largest wildfire, while authorities canceled evacuation orders near a major blaze in Northern California and another on Hawaii’s Big Island. Containment of the Bootleg Fire in remote southern Oregon was up to 84 percent late Sunday. It was 56 percent contained a day earlier. “That reflects several good days of work on the ground where crews have been able to reinforce and build additional containment lines,” fire spokesman Al Nash said. The blaze has scorched over 646 square miles (1,673 square kilometers) since being sparked by lightning July 6 in the Fremont-Winema National Forest. California’s Dixie Fire covered nearly 388 square miles (1,005 square kilometers) in mountains where 42 homes and other buildings have been destroyed. The fire was 33 percent contained Sunday evening, and evacuation orders and warnings had earlier been lifted for several areas of …