A new fire in Rio Blanco County near its border with Routt County is burning 300 acres near Crosho Lake and has prompted campground evacuations and pre-evacuation orders for nearby homes.

Firefighters are starting to gain ground against the Lee Fire burning in Rio Blanco and Garfield counties, which has grown to become the fifth-largest wildfire in Colorado history.

RIO BLANCO COUNTY, Colo. — The Lee Fire in Rio Blanco County has grown to the sixth largest in Colorado history, according to the Colorado Division of Fire Prevention and Control. The fire was mapped with infrared technology at more than 106,000 acres as of Sunday.

Two major wildfires are burning in Rio Blanco County. The Lee Fire, which grew over the weekend to more than 113,000 acres, now stands as the 5th largest wildfire in Colorado state history. It’s only 7 percent contained. The nearby Elk Fire is just over 14,000 acres and just 30 percent contained.

Lee Fire burning in Rio Blanco and Garfield counties, which has grown to become the fifth-largest wildfire in Colorado history, scorching more than 113,000 acres since it broke out on Aug. 2. Here's the latest from Denver7 on the scene.