The Medco B Fire, located 10 miles north/northeast of Butte Falls, is 345 acres in size and is 90 percent contained. The fire line was completed Sunday afternoon.

The fire broke out early Saturday afternoon and upslope winds during the afternoon and early evening hours on Saturday pushed the fire across logging units on private land. One of the units had been recently felled and bucked, and the other had been logged several years earlier.

The cause of the fire is being investigated.

More than 100 firefighters are assigned to fire suppression effort today, and they will be holding and improving the fire line, and extinguishing burning material within 50 feet of the line. Equipment available to the firefighters includes five water tenders, six wildland fire engines and three bulldozers. Aircraft are available if needed.

No structures are threatened by the fire, no evacuations have been made, and no roads are closed.