North Fork Trail Race

50 Mile/50K June 27, 2015, 7:00 a.m. - Pine, Colorado

The Race

In the Mountains
Just 40 Miles
Southwest of Denver

Current News

The 2015 race is full.  You can see who the entrants are on UltrasignupENTRY FEES ARE NON-REFUNDABLE AND NON-TRANSFERABLE.  See the Registration page for more details.

If you won't be running this year, please come out and volunteer.  Volunteering is fun, and it is very rewarding to help the runners working hard to accomplish their goals.  Volunteers get race logo T-shirts, all they can eat at the barbecue, and lots of satisfaction.  See the Volunteer page of this website for a description of the help we will need on and before race day.  Just email the race director at to volunteer.

TRAINING RUNS: The first of three very informal training runs with limited aid will be held on the course on May 2 at 8:00 a.m. at the Shinglemill aid station location.  Click here for the details and turn sheet .  Click here for the training run map .  The training run is limited to registered race entrants and race volunteers, each of whom may bring one guest to run with you and for whom you are responsible.  Please email Janice at if you plan to attend, and provide the name of your guest if you are bringing one.

May 30 (THIS DATE CHANGED from May 23) will be the 18-mile extension for the 50 Mile course from the Meadows aid station location.  June 13 will be about 22 miles from Pine Valley, consisting of the beginning and end of the course.  There will be options for extending these two runs as well. 

The 50 Mile and 50K are 100% trails, mostly single track and some double, in the beautiful Buffalo Creek Recreation Area in the Pike National Forest, starting and finishing along the rushing North Fork of the South Platte River in Pine Valley Ranch Park in Pine, Colorado.  The elevation ranges from 6,700 feet to 8,100 feet in the 50K and to 8,400 feet in the 50 Mile.  With 4,650 feet of climb in the 50K and 7,250 feet of climb in the 50 Mile, the race is very challenging for those not used to mountain trail races, yet speedsters who are used to altitude will find the course quite runnable.

The race benefits the North Fork Volunteer Fire Department, which protects the area where the race is run.  They have helped to battle a number of wildfires in the area in recent years that have changed the landscape, opening broad vistas of the high country and making way for new growth.  You will run through some of the burn areas, but most of the course is in pristine pine and aspen forest.  The beautiful scenery, friendly aid stations and generous time cutoffs make North Fork an excellent choice for first-time ultramarathoners as well as veterans. .  Runners get high quality tech T-shirts, unique finisher awards, a fabulous post-race barbecue and the satisfaction of a job well done.

Part of the proceeds are also donated to StageDoor Theatre in Conifer, which brings great entertainment to the local community and provides theater education and opportunity to area youth.  StageDoor volunteers will be helping out on race day.

Check out the photo galleries on the Photos page.  And all the course and race information can be found under the Races tab above.  If you have questions, feel free to email the race director at or call 303-903-3533.