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Mullen Fire

Unit Information

Medicine Bow National Forest
U.S. Forest Service
2468 Jackson Street
Laramie, WY 82070

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Mullen Fire Daily Update for 9-25-2020

Mullen Fire Wildfire
News – 9/25/2020

Virtual Community Meeting TODAY at 3 p.m.

The meeting will be livestreamed on the Mullen Fire Information page ( If you cannot access Facebook, please email us at; we will email you a link to join the meeting on Zoom.


Today will be a very active day with weather conditions similar to yesterday. Firefighters expect to see significant growth to the east and northeast of the fire, and winds may affect air operations. Structure protection crews will work to defend homes and structures in the evacuated areas. Fire and county officials are coordinating efforts to ensure the public is aware of rapidly changing conditions. Expect the Forest area closure to expand today.

On Thursday there was significant activity all around the fire, pushed by strong southwest winds with gusts to 30 mph that continued well into the night.

Winds were very adverse on the fire’s north, southeast, and east flanks, and firefighters were unable to slow fire’s advance. On the east, the fire ran to the southern edge of Rob Roy Reservoir. The southern tip of the fire moved to the east, crossing the 512 Road and approaching the Keystone communities. As fire activity intensified, many firefighters moved to successfully defend structures in the Rambler community and the Keystone area. 

Fire Conditions and Weather

A Red Flag warning is again in effect from noon until 8 pm and conditions will be warmer and drier. Today is the first of several days of strong gusty winds associated with a strong cold front passing through the area this weekend. West/southwest winds will continue, with gusts up to 40 mph, and firefighters expect fire spread to continue. As winds increase, air operations may be affected. 

Mandatory evacuations

  • Lake Creek community
  • Rambler community
  • Rob Roy community
  • Keystone communities: Keystone proper, lower Keystone, Langford/Ricker, Moore's Gulch, and 507C cabin grouping

Pre-evacuation notice

  • Private land along Fox Creek Road
  • The communities of Albany and Centennial, extending northwest along Highway 130
  • All areas west of Highway 11 in the valley. 

Closures and Restrictions

Temporary Flight Restriction

A Temporary Flight Restriction is in effect for the fire area ( For the safety of all firefighters, all private aircraft – including drones – must avoid this area. If you fly, we can’t!

Forest Closure

A Forest area closure is in effect surrounding the Mullen Fire. For details, see the Forest Closure Order ( or the Forest Closure Area Map (

Stage 2 Fire Restrictions are in effect for the fire area

The cause of the Mullen Fire is under investigation

Call the Laramie Ranger District anonymous tip line 307-745-2392 with information that may aid in the fire investigation.

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