Smoke from the 871-acre Red Rock fire in Northern California drifted into the Rogue Valley overnight, creating hazy skies and limiting mountain visibility across Southern Oregon.

Smoke from the 871-acre Red Rock fire in Northern California drifted into the Rogue Valley overnight, creating hazy skies and limiting mountain visibility across Southern Oregon.

Firefighters deliberately set fire to unburned areas inside their containment lines to deprive the fire of fuels in an effort to contain it, and the smoke drifted north, Forest Service spokesman Tom Lavagnino said in a press release.

Today, fire crews and helicopters will continue with their burnout operation to secure the western flank of the fire. More smoke will be visible, but fire bosses hope it will help to fully contain the fire, which is about 50 percent contained.

Nearly 400 firefighters are working on the fire, which is burning in the steep, rugged Marble Mountain Wilderness.

A few miles to the west, firefighters are working on the Harrington fire, which is burning in the Siskiyou Wilderness. The fire had grown to about 165 acres by Wednesday, and was 60 percent contained.

Both fires are burning on land managed by the Klamath National Forest. No private lands or structures are threatened by either fire.

— Bill Kettler