Updated 7:45pm:

The voluntary evacuation area for the Bison Fire has grown to parts of Lyon County.

Sheriff’s deputies were going door to door this evening asking residents to leave Pipeline Canyon.

The fire that is predominately in Douglas County has consumed 25,773 acres and is 25 percent contained. Full containment is still slated for July 14.

There are now 1,065 firefighters on the scene. On firefighter twisted a knee.

Several old mining structures have been destroyed.

Additional heavy helicopters are assisting in the aerial firefighting efforts, with winds on Tuesday posing less of a problem on certain areas of the fire than in past days.

The following road closures to non-residents are currently in place for:

Pine Nut Road at the intersection of Out-R-Way

East Valley Road at Grandview

Sunrise Pass Road at Coyote Rock

Brunswick Canyon Road

Mexican Dam Road

Sunrise Pass Road at Artesia Road.

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Crews were able to make significant progress on the Bison Fire early Tuesday morning after the winds died down about 3am.

It has, however, increased in size to 25,733 acres. It is 25 percent contained, with full containment expected July 14.

The fire in the Pine Mountains of Douglas County started July 4 from a lightning strike.

The fire ran through the Slater Mine area on Sunday burning several old structures, but no further structures have been reported destroyed.

Road closures in the area are still in place.

— Lake Tahoe News staff report