MONTEZUMA COUNTY, Colo. (CBS4)– The Burro Fire is burning in Montezuma County on Forest Service land near Cortez.

The fire is burning downhill towards Bear Creek in timber and heavy fuels.

READ MORE: 2 Tigers At Pittsburgh Zoo Test Positive For COVID-19

Trail 607 and Forest Service Road 436 are closed at Highway 145.

Campers are being evacuated. The fire has burned 100 acres as of 9:30 p.m. Friday.

Smoke from the Burro Fire (credit: San Juan National Forest)

Smoke from the Burro Fire can be seen near the smoke from the 416 Fire in a picture taken Friday night from the US Forest Service.

READ MORE: Coloradan Nichole Ayers Chosen For NASA's New Astronaut Candidate Class

Smoke from the Burro Fire on the left and the 416 Fire on the right (credit: USFS)

What caused the fire is being investigated.

Wildfire Resources

– Visit CBSDenver.com’s Living With Wildfire section.

Wildfire Photo Galleries

MORE NEWS: After Audit Reveals More Colorado Unemployment System Fraud, Some People 'Still Fighting' For Payments

– See images from the most destructive wildfires (Black Forest, Waldo Canyon, High Park and Fourmile), the deadliest (Storm King) and largest wildfire (Hayman) in Colorado history.