September 19, 2020 |

As of Saturday morning, fire officials reported the Mullen Fire grew almost double in size overnight to approximately 3,855 acres.

Windy conditions Saturday were expected to cause significant fire behavior. Officials asked the public to respect the closure in place across the surrounding areas on the Medicine Bow National Forest as the situation was rapidly changing and developing, with focus on public and firefighter safety.

The fire crossed the wilderness boundary on the south flank on Saturday and was at Forest Road 512. On the east side, the fire was approximately two miles from the 511 Road. There were reports of intense fire activity on the northeast side.

Keystone, Rambler and Rob Roy areas have been evacuated.

The cause of the fire is under investigation.

Click here to view the latest version of the Mullen Fire closure map also depicting the fire perimeter

The National Forest closure area annotated by the hash marks, with the fire perimeter depicted with solid red interior, as of September 18, 2020. Click to view larger.


Related: Wildfire burning in Savage Run Wilderness grows to 200 acres


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