The lightning-caused Indian Ridge Fire, burning 30 miles southwest of Darby in the Selway Bitterroot Wilderness, has grown 4,000 acres, according to InciWeb.
That's an increase of 1,438 acres from the last time the fire was mapped.
Officials report the fire has been active along the western and northern flanks, north of Indian Creek.
The fire is burning in a steep, rugged remote terrain where surface fuels and dead timber are making it difficult for firefighters to access the area.
Fire managers expect the blaze to reach Paradise Road and Indian Creek Campground in the coming days.
Temporary road closures including a barricade and road guard at Magruder Crossing could be put in place later this week.
The wildfire was first reported on July 7.
KECI-TV NBC 13 Missoula
The Manhattan Volunteer Fire Department is hosting their annual Fireman's Breakfast this Saturday at 6AM at their station.
The breakfast is their biggest fundraiser of the year and all proceeds go to help them buy new and essential gear the firefighters need.
"It helps us buy the latest equipment we need. It helps replace the outdated equipment that continues to wear and tear," says William Johnson, a Manhattan firefighter.
Firefighters are critically important this time of year in Montana, and the Manhattan Fire Department is made up completely of volunteers. They do it on the side to keep their communities safe.
"It's a great way to serve our community. It is time demanding to be able to do the training we need, to keep up with the days. So, it is all on our own time, we choose to do it.
KTMF-TV ABC/FOX 23 Missoula
Floating the rivers around Missoula is the epitome of summer in the Missoula while rafting on the Flathead is one of the best ways to experience the beauty of the Big Sky State.
But sometimes, these trips turn tragic. Western Montana is no stranger to river rescues — just Google it.
Last month, Ravalli County Search and Rescue teams faced numerous river calls.
And over the years, Missoula emergency crews return again and again to the Clark Fork to help someone in distress.
But the Clark Fork doesn't just stop at Missoula County lines.
It weaves its way through Mineral County where authorities have had their share of river rescues — and now they're even more prepared for it.
The Superior Volunteer Fire Department is back in the spotlight; this time it's for doing everything they can to prevent accidents on the water.
KPAX-TV CBS/CW+ 8 Missoula
The man who started the Robertson Draw Fire that burned nearly 30,000 acres was sentenced Wednesday.
John Lightburn, 55, was arrested and charged with causing the fire.
Lightburn reportedly said he was riding a dirt bike near the base of the mountains on a forest service line, and that he had been operating it on a trail.
He said the dirt bike appeared to be flooding, and while repairing the bike, he spilled gasoline and ignited a fire when checking a spark plug.
Lightburn was sentenced to 10 years at the Department of Corrections on Aug. 17, excluding the 420 days he spent in county jail.
KULR-TV NBC 8 Billings