Get ready for the most extreme half marathon front range Denver has ever seen. You will gain over 2500 vertical feet in this rough and rocky trail race.  The trail winds through scenic pine forests, fields of wildflowers and when you get to the top you are awarded with an amazing view of Denver.   

Be prepared for all elements:  mud, snow fields, creek crossings, and lots of rocky terrain!

Finish to a smorgasbord of snacks donated by our sponsors, beer, free  massages, a stretching and foam rolling area with Manic Training and amazing giveaways from our sponsors and awards!

——> Please note:  walkers are welcome (many of the pro’s walk sections of this race) however the cut-off time is at the 2nd aid station around mile 7 at 11am sharp!

Check out a video one of our participants created from our 2012 event:

Fear The Deer Trail Half Marathon 2012 from NakedRunnersTV on Vimeo.

Unfortunately, Fear The Deer will not be happening in 2019. Stay tuned as we are looking to bring it back in 2020.
HOWEVER, we have started to schedule trail work days on all of our front range Jeffco Open space trails starting at the end of the month!  We hope to make this a regular thing throughout the year so we can give back to the trails we love so much.
Please join us at one (or all) of the upcoming trail work events.  You can learn more and view the dates we will be out on the trail now HERE. 


Deer Creek Canyon Park, Littleton, CO

This year we are moving over to the Towneplace Suites Southwest.  This new venue is closer to the park and we will have more space for our post run activities!
10902 West Toller Drive • Littleton, CO 80127 USABA

There will be a shuttle for participants, spectators and volunteers from here.  Please read the Race Day Details page for more information.

Due to the unique terrain in the canyon we have capacity limits on trail use which makes this a smaller and more exclusive event.  The last 4 years we SOLD OUT!   In order to open the event up for more people to enjoy we’ve added another wave this year.  We recommend that advanced to elite runners choose the earlier wave.
Wave 1:  8am, Wave 2:  9am

$65 before January 15th, $70 before February 15th, $75 before March 15th, $80 until May 20th, day of= $90

*We’ve sold out by March the last two years so register early!!

—–> Included in entry fee is a really cool dry-fit tee, post run snacks, finishers medal, beer and FUN!



The event is manually timed, not chipped timed.  We post all results within 48 hours of the event and list results by BIB # not by time completed (so make sure to know yours).  This is a laid back, family run event.
We award ONLY the top 2 male and female runners, no age group awards.
Our top male and female finishers are awarded our Golden Antlers (like the golden jacket in Tour De France).  Will past champions be back to defend their title?  Will you be the one to earn the Antlers this year?

We also run one heck of a raffle giveaway post run so stick around to win something cool!
Other prizes include gift certificates, product, apparel and swag from our retail partners and other sponsors.   

We love our volunteers!  Sign-up HERE.   Volunteers receive a tee, medal, beer, lunch and 50% discount on next year’s race. 

 Like our FACEBOOK page for pre-race giveaways, videos, course info and more!

Road Runner Sports is our official retail and packet pick-up partner!  Stick around to shop after you get your packet and you’ll receive a coupon for $10 off a $30 (or more)
purchase or if you are a RRS VIP Member or join, you’ll receive 25% off the
retail price!

A trail relay in Snowmass, CO on June 9-10th. Use code CO18L2S at registration to get $80 off*. Find out more at http://bit.ly/2mJI7bp

Run the mountains you ski in the winter! Reebok Ragnar Road Relay is happening on Aug 25-26!  Use promo code CO18L2S to get $100 OFF* registration.

Bonus: All 2018 Captains will receive free shoes!  Find out more at http://bit.ly/2moA2W3

GoodTurn Cycles is a nonprofit social enterprise dedicated not only to helping people achieve better health, but also providing job training to young people. GoodTurn Cycles, an electric bicycle shop, operates in a way that puts the community first.

Body Mind Systems Training Center specializes in teaching adults and kids martial arts and holistic health.   This special training helps to bring balance to their lives through the practice of Tai Chi, restorative QiGong and Martial Arts styles from around the world!  Check out the Littleton location.

PureShock provides cutting edge nutrition with the purest ingredients of the highest quality in the industry.  Our forumlas undergo rigorous clinical testing and contain researched-based therapeutic doses of nutrients.  We guarantee every product is 100% compliant with the ingredients listed on our label.  All PureShock formulas meet or exceed certified NSF, NSF Sport and GMP quality standards.

manic logoManic Training is a purposefully varied high intensity training workout program designed to challenge your body’s ability to perform during any challenge, whether it be physical, mental or both.  Significant core-centric workouts, mixed with cardiovascular training in differing formats lend itself to major improvements in core strength, the ability to perform dynamic tasks and movements, and recover in rapid fashion. Movements through all planes of motion will strengthen your body in many ways, by exposing your weaknesses and building them up, to enhance your overall athleticism and durability, particularly for challenging endeavors such as distance running, mountain biking, etc. After all, “it’s not what you can do in the gym, but what you can do outside because of it!