#cavemanfunrun
Join us for the fifth Annual Caveman Fun Run and Flying V Trails Day!
Saturday, May 10th, 2025: Flying V Trails

Newcastle, WY
5K, 10K, and 20K Trail races!
Register below today!
And we offer free registration for 18 and under for all distances!
The Bent Sprockets club would like to invite you to Newcastle, Wyoming, to the Flying V trails for a fun trail race in memory of Bill Kohlbrand. Bill enjoyed being outside, whether cruising a timber sale, riding his mountain bike, or spending time outside with family or friends. He also had a vision to build local trails for generations to enjoy, including both the Serenity Trails as well as the Flying V Trail system. Bent Sprockets has picked up and continued his vision by maintaining the local trails and adding to them.
The Flying V trail system is the perfect place to honor Bill’s vision and enjoy a day on the trails. While our main goal was to get people outside and show off our wonderful trails, any proceeds from the race will help continue trail work and improve local access to our natural areas.
Click on the Course Overview page for more details.
Flying V Trails Day!
#flyingvtrailsday
We are also excited to combine the Caveman Fun Run with our Flying V Trails Day celebration again this year! If you aren’t interested in the race, come out and participate in a group bike ride, guided hikes, and more! We have been busy making many improvements over the last couple of years and are excited to show them off! All ages and abilities are welcome.
We also have over 12 miles of accessible trails and would love to have any adaptive riders join us! For more information on our adaptive trails, visit ourĀ adaptive trails project page.
The celebration will begin with a free lunch, followed by playing on the trails! While lunch is free, we will accept donations to go toward future projects.
Schedule
- Caveman Fun Run begins at 8 am
- Awards around 11:00 am, followed by a free lunch
- After you get some lunch, join us for a tour or strike out on your own adventure!
We would love to see everyone at Flying V Trails Day! And stay tuned for more details as it gets closer! For more on our trail projects at the Flying V Trails read the letter from our President!
Where
Flying V Trails: located about 8 miles north of Newcastle, WY on US Highway 85. On the east side of the highway, across from the Flying V Cambria Inn.

Parking: Parking for participants will be allowed at the Flying V Trails parking lot, with overflow parking across the highway at the Flying V Cambria Inn parking lot. See the map below for directions from the overflow parking area to the trailhead. Walk up the abandoned road, coming out across from the Flying V Trailhead access road. Signs and volunteers will also be present to help direct traffic.

Registration
Registration for each distance will be as follows:
- 5K – $30
- 10K – $45
- 20K – $60
- And, we also offer free registration for 18 and under! So get out there and join us!
Those interested in going for a hike are also welcome to join us. We love sharing our trails with everyone!
Again, this year, the First 25 to register will receive a free tree or shrub from the Weston County Natural Resource District. More details on varieties will follow soon.
Also, all participants who register by April 4th will be guaranteed a unique participant race souvenir. Register early, as prices increase by $20 on Friday, April 18th. Online registration closes on Wednesday, May 7th at 11:59 pm. Registration will be also be allowed at packet pick-up the night before.
Register by clicking on the Ultrasignup registration link above.
No Refunds: Due to the upfront costs and fees associated with organizing this event, no refunds or rollovers will be given for registrations. If the race is canceled for conditions beyond our control, we reserve the right to retain the entire balance of the entry fee. Thank you for understanding.
Communication & Medical Support
We would also like to thank the Weston County Sheriff’s Search and Rescue for providing communication services between the aid station and the start/finish area and medical support!
