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North Fork Trail 50K and 50 Mile

June 5 @ 8:00 am - 5:00 pm MDT

$135 – $200

The North Fork 50 Mile/50K is 100% trails, mainly single track and some double track, in the beautiful Buffalo Creek Recreation Area in the Pike National Forest, starting and finishing along lovely Buffalo Creek in Buffalo Creek, Colorado, in the mountains about 50 miles southwest of Denver.  This is a pure ultra, a very special and unique race, deliberately kept small so each runner gets personal attention. There are no non-ultra distances and no crowds on the beautiful trails. Celebrate your accomplishment at the fabulous post-race barbecue with your choice grilled to order and beer from our great sponsor Avery Brewing. Proceeds of the race benefit the North Fork Volunteer Fire Department, which protects this scenic area and for whom the race is named, ProjectPurple.org, and Conifer’s StageDoor Theatre.

The course is one loop for 50K, plus an out-and-back section in the 50 Mile.  The course is mostly in lovely pine forest, but it also includes parts of the areas burned in the 1996 Buffalo Creek fire, which the North Fork Fire Department helped to fight. The fire created a stark and fascinating landscape and opened up breathtaking views of the high mountains and unique rock formations. The altitude is 6,700 to 8,100 feet in the 50K and 6,700 to 8,600 feet in the 50 Mile. The 50K has about 3,800 feet of climb, and the 50 Mile about 6,500. Although the course is very challenging for those who do not regularly run mountain trails, speedsters used to altitude will find the course quite runable. And the friendly aid stations, beautiful scenery and liberal time cutoffs make North Fork an excellent choice for a first trail ultramarathon. Complete race, course and lodging information can be found on the race website.

Part of the URSA Major Race Series


June 5
8:00 am - 5:00 pm MDT
$135 – $200
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Buffalo Creek
18050 South Buffalo Creek Road
Buffalo Creek, 80425 United States


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