Sunday, September 20, 2020

A true trail run through the beautiful and

challenging Castlewood Canyon State Park,

south of metro Denver, Colorado.

REGISTRATION OPEN Until September 19th

Limited to 300 Participants

BackgroundBackground & Venue

Castlewood Canyon is a hidden treasure for hikers and trail runners.The Park is a Colorado Natural Area providing abundant wildlife, plant, and geologic viewing opportunities. The theme of the Run, a surprising remnant of local history, is on display at the ruins of Castlewood Dam. This historic dam burst during a storm in 1933, sending a wave of water flooding into Denver.  Runners participating in the 10K run will pass this unexpected window to the past, as well as the historic Lucas Homestead site.

2020 marks the 7th annual Dam Run at Castlewood Canyon State Park


The Dam Run is a fundraising event.  All profits will benefit Castlewood Canyon State Park. Your participation will help us protect and preserve this special place in our community.

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BackgroundDistance & Timing

Both events are timed.

Neither course is certified for length.

10K :  This run is long at approximately 6.5 miles. A true trail run with variety of terrain and nearly no asphalt.

5K :  This run is short at approximately 3.0 miles.

Both runs begin and end at the Canyon Point parking lot at Castlewood Canyon


Get Trail Map Here

Find Prior Years Results Here


Want to TRIPLE your running experience at Colorado state parks?  Here's how...

Presenting the second Colorado State Park Run Series- “Run the Plains, then into the Canyon, and finish with the Mountain”.  Three exciting races to experience for a reduced price. 

  • The Raptor Run – September 12th – Barr Lake State Park – 5k

  • The Dam Run at Castlewood Canyon - Sept 20th - Castlewood Canyon State Park-5k and 10k

  • The Cheyenne Mountain Run - Oct 10th - Cheyenne Mountain State Park-3 mile, 10k and 25k runs


In addition to the natural beauty experienced during the Dam Run at Castlewood, start the series with the Raptor Run along the shores of Barr Lake and finish the season with the challenge of a trail run at Cheyenne Mountain State Park.  Sign up now for the Barr Lake 5k, the Castlewood Canyon 10k and the Cheyenne Mountain 10k, all for a reduced price of only $99!  That’s a 25% reduction in price over registering for each individual run.  You can also sign up for a combination of a run at Castlewood Canyon and one at Cheyenne Mountain.


This is a GREAT opportunity to support the Friends organizations at all three front range state parks!  Receive a special commemorative gift if you participate and finish all three runs!

Register for one of the combinations of runs today and receive one of the following discounted combo pricing:

Barr Lake Raptor Run 5k, Cheyenne Mountain 10k Run and The Dam Run at Castlewood Canyon 10k

Present to September 11th:  $99 for all three runs


The Dam Run at Castlewood Canyon 10k and the Cheyenne Mountain 25k Run

Present to August 15th:  $95 for both runs
After August 15th to September 19th:  $115 for both runs


The Dam Run at Castlewood Canyon 10k and the Cheyenne Mountain 10k Run 

Present to August 15th:  $80 for both runs

After Aug 15th to September 19th:  $100 for both runs


The Dam Run at Castlewood Canyon 5k and the Cheyenne Mountain 3+ mile Run 

Present to August 15th:  $50 for both runs
After Aug 15th to September 19th:  $55 for both runs



Park entrance fees are included with registration. When registering online, there may be a small processing fee added to the registration fee.


There are no refunds. Deferral of race registration to a following year's race is not allowed.


Registrants are allowed to transfer their entry to another runner, or to change categories from the 10K to 5K at no additional charge. Registrants are also allowed to change categories from the 5K to 10K, with an additional charge for the cost difference for the higher registration fee. To execute a transfer, please navigate to the registration page, select "FIND MY REGISTRATION" and follow the link for transfers.

Packet Pickup:

Packet pick up will take place on SATURDAY, SEPTEMBER 19th, 2020 from 11:00 am - 2:00 pm.  The location is Road Runner Sports in Lone Tree. Address is 8457 South Yosemite St.  Phone number is (303) 802-4434.


When you stop by Road Runner Sports to pick up your bib, why not pick up a few things for the race?  You'll receive 20% off everything during packet pickup hours when you join the VIP Family Membership.  This is the best deal Road Runner Sports offers all year, so plan to take advantage of your discount when you check in for the race.


Race day bib pick up and registration will be available at the event location as time permits.  You may pick up your bib or register for the race at the Canyon Point start area beginning at 6:00 am.  


On race day please enter at Castlewood Canyon State Park's main entrance which is located 5 miles south of Franktown on Highway 83. Your park entrance fee is included in your race entry, so you don't need to pay at the window. The start and finish lines will be at the Canyon Point parking lot. Follow the signs to Canyon Point parking lot.  


Participants will park at Canyon Point parking lot. Please note that parking is limited.  If the Canyon Point parking lot is full, there are several smaller parking lots nearby. Please refer to the Castlewood Canyon State Park Map for more detailed information on location of parking lots. Due to limited parking and in an effort to GO GREEN, we highly encourage carpooling.

​​Course descriptions:

The 10K - This trail run is all about variety of terrain on the trails! A true trail run - no asphalt here! This challenging race starts and ends at the Canyon Point parking lot.  You will start at the Lake Gulch trail head and run down the Lake Gulch trail to the Dam trail where you will see remnants of the Castlewood Dam.  You will run up a steep incline to Rimrock where you will run along the rim of the canyon. Enjoy the views, but don't take your eyes off the trail for too long - running on the rim rocks is a little tricky! You will then head down a challenging and technical descent to Creek Bottom trail where you will cross Cherry Creek, run along the creek and past the beautiful waterfalls. You will then run back up the Dam trail to Inner Canyon trail, cross the creek and up steep steps to the finish line at the Inner Canyon trail head where we will be cheering for you.


The 5K - For the first 0.8 miles, runners in both events will share the course.  After crossing Cherry Creek at the bottom of Lake Gulch trail, 5K runners will turn right and enter the Inner Canyon trail. At 1.6 miles, after a steep ascent, 5K runners will emerge from the canyon and complete the remainder of the distance on the paved Canyon View Nature Trail.  For the final 0.2 miles, 5K runners will re-join the 10K course to finish in the same location.




Hikers are welcome on either course, but are respectfully requested to begin after the runners have started. 


NO dogs or strollers are allowed on either course.

Hydration / Restrooms:

The 10K race will have 3 opportunities to hydrate.  The first water station will be at just over a mile, before you climb to the Rimrock Trail.  The second will be at approximately 3 miles at the Homestead.  Runners will pass the first water station for a second time at approximately 5 miles.  The Westside restrooms are approximately at the 4 mile mark.

The 5K race will have a single water station at 1.75 miles.  Restrooms are available at approximately 2 miles.

After the Race:

At the completion of the race, cool down with a short walk to the covered event facilities off the Canyon Point parking lot.  Enjoy hot, homemade flapjacks, juice, coffee and snacks complements of Friends of Castlewood Canyon, and shop for Castlewood Canyon gear.  Other vendor booths may be available.  Awards and door prize announcements will occur shortly after the conclusion of events.  Food is available to participants from approximately 7:30 am - 10:00 am.




All participants will receive an event t-shirt.


Unique slate plaque awards showcasing the beauty of Castlewood Canyon State Park will be awarded to the top 2 male and female finishers in each of the 5K and 10K events.  The top male and female masters finisher in each event will also receive a slate plaque.  Masters category will include runners 50 years and over.



Professional Timing:


Timing Consortium will be timing the 10k Trail Run.  Official results will be posted at the park as runners are finishing and immediately after the run.  Official results will be uploaded onto this website as soon as possible after the run. 

Number of Participants:



Fastest Times:

While we do see some serious runners at this event, it is a fundraiser and all levels of ability are welcome. Participants walking along at a quick pace are just as appreciated as those trying to achieve a best time. Please join us in enjoying the trails at sunrise!


Our Sponsors


Friends of Castlewood Canyon

State Park

PO Box 403

Franktown, CO 80116



Castlewood Canyon State Park

2989 S. Highway 83

Franktown, CO 80116

T: (303) 688-5242


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