Big Horn Mountain Wild and Scenic Runs


Jun 18, 2022 at 6:00 AM

Big Horn Mountain Wild and Scenic Runs

Dayton WY, 82836


Event Facebook page

Entry Fee $40
(Lowest or Early Registration)

Entry Fee 2 $60
(Highest or Late Registration)

Prize Money: no


  • 100M
  • 50M
  • 18M
  • 32M

Type: Ultra

Participant Limit: 350

Starting Elevation: 4500

High Point: 9000

Percent of the course on un-paved trails: 75%

First Year of the Event: 1993

Men's Record: Mike Peacock, '93, 2:17

Masters Men Record: Duane Cole, '93, 2:24:03

Women's Record: Sara Heywood, '93, 2:28:30

Masters Women Record: Karen Izzard, '93, 3:10:15


The inaugural Bighorn Trail 100 Mile Endurance Run was held in 2002 to commemorate the tenth anniversary of the annual Bighorn Mountain Wild and Scenic Trail 50M, 50K, 30K (started in 1993). These runs were initially started by local trail runners interested in preserving and protecting the Dry Fork and Little Bighorn River Canyons from a planned pump storage hydroelectric project and other development. We desired to increase public awareness of the natural beauty, rugged terrain, and unique geology of the Bighorn Mountains and Dry Fork and Little Bighorn River drainage in particular so that informed decisions could be made regarding management of these resources. Through extensive public input, the planned pump storage hydroelectric project has been placed on hold and probably is dead; but the area remains potentially threatened in the future by other possible development.

The runs largely continue at this time as a public service by trail running enthusiasts and volunteers in the Sheridan community to promote recreation and tourism in Sheridan County. The course is designed to maximize the exposure of the participants, their families, and race volunteers to an extremely scenic, wild, and primitive area of our geologically unique Bighorn Mountains. The course allows maximum flexibility to accommodate a variety of unpredictable weather conditions or adverse course contingency courses (hopefully would never have to be used) that would be aesthetically acceptable to the trail runner; while allowing race management to maximize their volunteer support in conducting these events.


No photos available.


Past Event Dates

Held on Jun 18, 2022

Held on Jun 18, 2021

Held on Jun 19, 2020

Held on Jun 14, 2019

Held on Jun 15, 2018

Held on Jun 16, 2017

Held on Jun 17, 2016

Held on Jun 19, 2015

Held on Jun 21, 2014

Held on Jun 15, 2013

Held on Jun 16, 2012

Held on Jun 18, 2011

Held on Jun 19, 2010

Held on Jun 20, 2009

Held on Jun 21, 2008

Held on Jun 16, 2007

Held on Jun 17, 2006

Held on Jun 18, 2005

Held on Jun 18, 2004

Held on Jun 21, 2003

Held on Jun 15, 2002

Held on Jun 16, 2001

Held on Jun 17, 2000

Held on Jun 19, 1999

Held on Jun 20, 1998

Held on Jun 21, 1997