The fire, which started Aug. 17, had burned 235,841 acres of trees and brush in the Stanislaus National Forest and Yosemite National Park as of this morning.
More than 100 structures — including 11 homes, several tent cabins and dozens of outbuildings — have also been burned.
The cause remains under investigation.
Jerry Snyder, U.S. Forest Service spokesman, said firefighters have corralled the fire into area dominated by rock. Their efforts were aided by “pre-work” — establishing fire lines, back burning and a large work force establishing a perimeter.
At its height, 5,115 people were assigned to battle the blaze. As of this morning, the number had dropped to 4,350.
Over the weekend, firefighters lit backfires mostly along the northwest and southeast and established containment lines. The fire was most active to the east and south.
Today, containment efforts will focus north of Cherry and Eleanor Lakes and in Yosemite National Park south of Harden Lake and along Tioga Road, on the eastern front of the fire. More backfiring may be done as needed.
Both Tioga Pass Road and Highway 108 over the Sonora Pass remain open to traffic, although there is a detour along Tioga Pass in the fire area.
Today, smoke is expected to be “unhealthy for sensitive groups,” like children and the elderly, in eastern Tuolumne County and spreading well past Reno, Nev., according to a map from Tuolumne County Air Pollution Control District.
Calaveras County is slated to have “moderate” air quality, unhealthy only to extremely sensitive individuals.
Tuolumne County schools will all open today, after being closed last week due to air quality authorities’ recommendations.
Crabtree Road was closed over the weekend for firefighting needs and further mandatory evacuations were called and then lifted in Mariposa County.
Full containment is expected Sept. 20.