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Quad Rock 50 and 25

May 11 @ 5:30 am - 7:30 pm

Welcome To QUAD ROCK 50 & 25

Date:MAY 11, 2024

  • StartLory State Park, Fort Collins, CO.
  • Distance: 25 Miles (5,500′) or 50 Miles (11,000′)
  • Min/Max Elevation: 5,444′ / 7,087′
  • Average Elevation: 6,200′
  • Terrain: 85% singletrack, 15% dirt road
  • Fauna: Abert squirrels, deer, black bears
  • Registration Caps: 450 total (225 in each event)
  • Time Allowance: 50 mile – 14 hours; 25 mile – 12.5 hours
  • Date: May 11, 2024
  • Start Time: 50 mile: 5:30am; 25 mile: 7:00am

Welcome to the Quad Rock 50 and 25 mile trail races, an event put on by trail runners for trail runners.

Taking place on the trails and hills west of Fort Collins in Lory State Park and Horsetooth Mountain Park, the Quad Rock 25/50 will take you on a tour of the Fort Collins skyline, situated on the northeastern stretches of Colorado’s mighty Rocky Mountains. Look east from the course’s high ridges and you’ll see the Great Plains extending into Nebraska as far as the eye can see. Look west and you’ll take in summit views, dominated 30 miles away by a towering Longs Peak.

We aspire to not only offer a first class trail racing experience on a challenging, scenic and impeccably marked course, but also a top-notch post-race experience that will leave your bellies full and the stories flowing.


May 11
5:30 am - 7:30 pm


Lory State Park
Fort Collins, Colorado


Gnar Runners
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