Join us for American Discovery Trail Marathon on Labor Day

The ADT Marathon has been a USATF certified Boston Qualifier (CO-08011-DCR) and is currently undergoing recertification for the 2019 marathon event. The marathon starts (6:30 AM) in Palmer Lake, CO. The N to S trail drops gradually from 7300 feet to 6040 feet in downtown Colorado Springs. It is a gently rolling course, with mostly hard-packed trails south to Woodmen Road. It is east of the Rampart Range and offers views of the majestic US Air Force Academy. The race ends at the America the Beautiful Park. There are some minor road crossings, which will have course marshals. The southern part of the course (south of Woodmen Rd.) is an urban trail with sections of concrete, asphalt and crushed granite. Some of the concrete sections have an adjacent soft shoulder.


Participants can register online at RunSignUp.

Bib and Shirt Pickup

Bib and Shirt Pickup Party on Sunday noon-5pm, September 1 at the Bristol Brewing Company, Wild Cat Room, 1604 South Cascade Avenue, Colorado Springs, CO 80905. Runners should pick up bibs and shirts on Sunday, but if you are not able to pick up, you should claim your bib at the start line area at Palmer Lake prior to the marathon on Sep. 2, Labor Day and you should take a 5:00AM bus to the start line so that you have time to claim your bibb.

Sweat Check

Runners can check sweats at the start line at Palmer Lake. Sweats will be stowed for distribution following the race at the America the Beautiful Park. The race organization is not responsible for lost or stolen items so please do not place valuables with your gear.

Bus Transportation to the Start Line in Palmer Lake

Bus transportation will be provided starting from America the Beautiful Park. Buses will leave between 5:00AM and 5:15AM. There will be no car parking available at the start line. Runners should park their cars in the downtown area and ride the bus.


Do not park your car at the Park. Parking is not available this year in the County parking garage on the corner of Sahwatch & Vermijo Sts or along Vermijo St. west of Cascade Ave., which is closed due to construction. You can park along the street in any metered spot on the Labor Day holiday, which includes anywhere along Cascade Ave. Parking is available along Sahwatch St. or on an adjoining street. Go one block west of Cascade Ave. on Colorado Ave. and turn left (south) onto Sawatch St. and look for a place to park. Take a short 1/4 mile walk north to Colorado Ave., and then on Colorado Ave. over the RR tracks to the Park on Cimino St.


There will be pacers available for runners.

Aid Stations

Aid stations will be available at least every two miles, with water and Gatorade at each Aid Station and gels available at select stations. Aid stations will close after the Cut-Off times by location and all by 1:00 pm. See the Time Limits below.


Restrooms are available at the start and finish lines, as well as several additional locations along the course.

Time Limits

Out of consideration for the hundreds of volunteers that will be helping with the race, we will enforce the cut-off time of 6 hours and 30 minutes. If you foresee any of these cut-off times to be a problem, and are registered for the marathon, please contact the race director for a transfer to the half marathon. Following are the course cut-off times basedupon the 6:30AM start: Mile 7.0 - Baptist Road Cut-Off Time: 8:20AM (1 hour 50 minutes from start time - ~15:30 pace) Mile 18.6 - Criterium Bike Shop Aid Station Cut-Off Time: 11:10AM (4 hours 40 minutes from start time - 15:00 pace) Mile 26.2 - Finish line by 1:00PM (6 hours 30 minutes from start time - 15:00 pace)

Pets, Strollers, and Headphones/Earbuds

For insurance purposes, no pets, baby joggers or bikes may accompany a runner. In addition, headphones/earbuds are highly discouraged.


Expect temperatures in the high 40s to low 50s at the start of the race and between the 60s and 90s at the finish. Please be sure to check the weather forecast prior to race day.


Complete results will be available as soon as possible following the race.

Post Race Food and Drinks

Jersey Mike's Subs, Marco's Pizza, Bristol beer, along with fruit and sodas, will be available after the race.

Course Change

In the event that we are unable to run through the Air Force Academy, due to a change in national security status or due to course flooding, we will revert to the out-and-back, non-Boston qualified marathon course, which starts and finishes at the America the Beautiful Park. While this scenario is unlikely, please plan accordingly. Out of consideration for costs that will already have been incurred for the race, refunds cannot be processed.