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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 9-24-2020

Mullen Fire Wildfire
News – 9/24/2020

Virtual Community Meeting: Friday, Sept. 25 at 3 p.m.

Links to access the meeting will be announced when the meeting has been set up.


Wednesday afternoon, gusty northwest winds expanded the southern flank of the fire, and fire managers expect more growth there today.

Yesterday’s wind caused spot fires on the southern flank of the fire. Air operations is supporting firefighters on the ground using scooper planes making water drops using water from Lake Hattie, Lake Owen and Rob Roy Reservoir.

On the fire’s east side, ground and aviation firefighters continue a coordinated effort to protect the Keystone communities, Lake Creek, the Rob Roy Reservoir area, and the City of Cheyenne water supply.

The Structure Protection Group continues to prepare evacuated communities for the possibility of wind-driven fire spread today through Saturday. They are removing brush around structures and installing sprinkler systems. Engines and hand crews patrol those areas through most of the night.

The cause of the fire is under investigation. If you have first-hand information on activity in the South Mullen Creek drainage, please call the Medicine Bow National Forest – Laramie Ranger District anonymous tip line at 307-745-2392.

Fire Conditions and Weather

Today, a Red Flag warning is in effect from noon until 8 pm. Firefighters expect continued fire spread, due to strong southwest winds gusting up to 35 mph, very low humidity, and warm temperatures. 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

Medicine Bow-Routt National Forests and Thunder Basin National Grassland:  

Albany County:  

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