North Fork Trail Race

REGISTRATION FOR 2018 IS CLOSED AS THE RACE HAS SOLD OUT.  There is no wait list.  Entries are non-refundable, non-transferable and cannot be rolled over to next year. 

See the Registration page for details on this policy. 

We would love to have you volunteer at this year's race.  See the Volunteer page.  We especially need some folks at aid stations.  Just email .

Complete information on the 2018 race is here on this website.  Just look under the tabs near the top of this page.  Runners are responsible for knowing this information.  We suggest you print this for reference:  RACE INFO PDF


TRAINING ON THE COURSE:  We are not having organized training runs this year, but you can always do your own training runs by using the course map and turn sheets found on the Course page.  Forest Service Road 550 is NOW OPEN!!!  So you can drive in to the Shinglemill and Meadows aid station locations to start training runs.



Current News

THANK YOU to our sponsor Avery Brewing, who provides the great Avery beer for our post-race barbecue!  And to Succeed for providing S! Caps for our aid stations.  And to Runners Roost for our bib numbers and start/finish banners.

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 4,800 feet of climb in the 50K and 7,500 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 runable.

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 over the 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 presenting the barbecue on race day.

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

In the Mountains
Just 40 Miles
Southwest of Denver

The Race

50 Mile/50K June 2, 2018, 7:00 a.m. - Pine, Colorado