The Dam Run at Castlewood Canyon 2019

The Dam Run at Castlewood Canyon 2019

Sunday, September 15, 2019  •  5k, 10k, Trail Runs

Catch us next year!


Join us for The 6th Annual Dam Run at Castlewood Canyon

Sunday, September 15, 2019.  Trail run start time is 7:00 amRun entirely on Castlewood Canyon State Park trails!  

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

This event is a fund raiser. ALL PROFITS will be used for the benefit of Castlewood Canyon State Park. 

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


Presenting the inaugural State Park Duo Series -Run the Canyon, then the Mountain”.  Two exciting races to experience for a reduced price. 

-          The Dam Run at Castlewood Canyon - Sept 15th-Castlewood Canyon State Park-5k and 10k

-          The Cheyenne Mountain Run - Oct 12th-Cheyenne Mountain State Park-3 mile and Half Marathon

In addition to the natural beauty experienced during the Dam Run at Castlewood, challenge yourself with another trail run at the Cheyenne Mountain State Park.  The Cheyenne Mountain Run features two trail runs, one for the more advance trail runner and a 3-mile run for all to enjoy.  In the Fall of 2018, the Dixon Trail was opened at Cheyenne Mountain State Park in Colorado Springs, CO.  This trail race provides runners with a challenging heavy half-marathon race that will be about 14 miles in length. Starting elevation at Limekiln parking lot is 6,060’ and the turnaround elevation is approximately 9,050’, enabling runners to experience about 3,000’ of elevation gain and loss.

This is a GREAT opportunity to support both Friends of CMSP and Friends of CCSP!  Receive a special commemorative gift if you participate and finish both races!

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

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

Present to August 15th:  $85 for both runs
After August 15st to September 14th:  $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 15st to September 14th:  $55 for both runs


2989 S State Highway 83, Franktown, CO


Online registration is closed, please register at the event.


The 10K TRAIL RUNis about the variety of terrain on the trails! A true trail run - no asphalt here! This challenging race starts and ends at Canyon Point.  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 Course

We are excited to bring back the 5K event that is run with the original 10K trail run! For the first .8 miles, runners in both events will share the course.  After crossing Cherry Creek, 10K runners will turn left and continue along the original course from the past four years.  5K runners will turn right and enjoy a shortened version of the course.  At 1.6 miles, 5K runners will emerge from the canyon and complete the remainder of the distance on our paved Canyon View Nature Trail.  For the final .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. 

Unfortunately, NO dogs or strollers are allowed on either course.

Once you've completed your race, catch your breath and head over to the group picnic area to enjoy some hot homemade flapjacks! Stick around a little for the awards and door prizes.

Neither course is certified for length! The 10K course is long at approximately 6.5 miles. The 5K course is short at approximately 3.0 miles.


On race day you will 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 Canyon Point.  Follow the signs to Canyon Point parking lot.  


You 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 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 with other participants if at all possible.


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!  NEW in 2019: Overall awards will take priority over masters awards. 


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.  You will then pass the first water station for a second time at approximately 5 miles.  You will also pass the Westside restrooms at about 4 miles.

The 5K race will have a single water station at 1.75 miles.  You will also pass restrooms at approximately 2 miles.


Timing Consortium will be timing The Dam 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.  


Breakfast provided to all 5K and 10K race entrants! Our volunteers will be cooking delicious homemade flapjacks on their giant grill. 


Unfortunately, there are no refunds for The Dam Run at Castlewood Canyon.  Deferrals of race registrations to the following years race will no longer be allowed.

Registrants ARE allowed to transfer their entry to another runner, or to change categories from the 10K to 5K at NO CHARGE. Registrants ARE allowed to change categories from the 5K to 10K, HOWEVER, registrants will be charged the cost difference for the higher registration fee. To execute a transfer, please use the button at the top of this page, "FIND MY REGISTRATION," to find your registration and follow the link for transfers.


Register for both runs at this website and receive one of the following discounted combo pricing:

The Dam Run at Castlewood Canyon 10k and the Cheyenne Mountain Run Half Marathon
  • Present to August 15th:  $85 for both runs
  • After August 15st to September 14th:  $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 15st to September 14th:  $55 for both runs


Packet pick up will take place at Road Runner Sports in Lone Tree. Address is 8457 South Yosemite St.  Phone number is (303) 802-4434.

Race day bib pick up and registration will be available 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.  


The park entrance fee is included in the event registration fee. Please note that a small online registration processing fee will be added to the prices listed below.  As a reminder, ALL PROFITS will be used for the benefit of Castlewood Canyon State Park. 


 Hurry, there are only 104 entries remaining for this event.