North Fork Trail Race

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.

Registration for the June 1 race is now open on UltraSignup.

Entry fees:  50K $105; 50 Mile $115; increasing by $15 on March 15.

275 total entries will be accepted for both distances combined.  There will be NO WAIT LIST.  Entries are NON-REFUNDABLE and NON-TRANSFERABLE and cannot be rolled to a future year.  See the Registration page on this site for details of this policy.

THE BIG NEWS:  The 2019 race (June 1) will start and finish at a new location!  Due to a scheduling conflict at our old start/finish, we had to find a new location.  We have been very fortunate to find a great new location, just a few miles down County Highway 126 from Pine Valley at the intersection of Buffalo Creek Road/FS 543 and Highway 126.  The Buffalo Park Improvement Association (BPIA or "Bippy") is allowing us to use its Community Hall and their large field for parking.

We will be able to have all parking on site--no more shuttle!  The Bippy Community Hall will give us electricity, a kitchen, and a great inside room for serving the barbecue, and there is plenty of outside space where we can watch finishers come in.  We think it is going to be a wonderful place for our start and finish.

All the new course information is now on the Course page under the Race Info tab above--map, turn sheets, aid station tables, elevation profiles and crew map and directions. ​

Map of parking and start/finish area

Current News

The 50 Mile and 50K are 100% dirt, mostly single track trail and some double track and dirt road, in the beautiful Buffalo Creek Recreation Area in the Pike National Forest, starting and finishing along lovely Buffalo Creek at the Community Hall in Buffalo Creek, Colorado.  The Community Hall belongs to the Buffalo Park Improvement Association (BPIA or, as the locals call it, "Bippy")--so our start/finish is nicknamed Bippy. The elevation ranges from 6,700 feet to 8,100 feet in the 50K and to just over 8,500 feet in the 50 Mile.  With 3,800 feet of climb in the 50K and 6,600 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 and for whom the race is named.  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.

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 50 Miles
Southwest of Denver

The Race

50 Mile/50K June 1, 2019, 7:00 a.m. - Buffalo Creek, Colorado