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Crater Ridge

Unit Information

Bighorn National Forest
U.S. Forest Service
2013 Eastside 2nd St
Sheridan, WY 82801

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This incident is no longer being updated.

This is a map depicting the Crater Ridge Fire closure area.Image options: [ Full Size ]

The Crater Ridge Fire ignited on July 17 in a remote area of the Medicine Wheel Ranger District of the Bighorn National Forest. Despite its isolated location, local response was quick with both aerial and ground resources. Over the remainder of July and through August, the fire continued to grow to over 6,000 acres in rough and often inaccessible terrain around Crater and Boyd Ridges.

This area of the Bighorn National Forest has a high volume of dispersed camping and hunters preparing for the fall season. Numerous travel trailers were located near the fire area. To allow for the safe exit of the public and ease access for the firefighters, the Forest implemented a closure in effect for much of the National Forest lands north of Highway 14A and east of the Big Horn/Sheridan County line.
There are two large burn scars in the Crater Ridge Fire area - the 1970 Pumpkin Creek Fire to the west and the 2003 Little Horn II Fire to the east. As the fire started to burn northward, it laid down when it reached both burn scars and continued to burn to the north between them. While burning continues in these scars, spread is greatly reduced due to the lesser amount of available fuel. A fire history is provided on maps of this incident.

Basic Information

Current as of
Incident TypeWildfire
Date of OriginSaturday July 17th, 2021 approx. 03:00 PM
Location31 miles west of Sheridan
Incident CommanderMarvin Matthiesen, Type 4 Incident Commander
Incident DescriptionWildfire
Coordinates44.947 latitude, -107.771 longitude

Current Situation

Size7,682 Acres
Percent of Perimeter Contained100%
Estimated Containment DateSaturday October 30th, 2021 approx. 12:00 AM
Fuels Involved

Timber (Litter and Understory)

Heavy Logging Slash

Short Grass (1 foot).

primarily in mixed conifer timber fuels with a heavy dead component (Fuel Model 10).

Significant Events


Group Torching

Single Tree Torching



Fire declared out 12/10/21 0800