Mountain Madness Half & 10k

The Mountain Madness Half Marathon joins the Hayden Cog and 10K at 10,000 feet as one of the oldest races in Steamboat Springs and the Running Series. The Mountain Madness course will take runners along beautiful county roads with sweeping views of the Ski Area and the Yampa River, and is held over 4th of July weekend.

Distance: 10k, Half Marathon and Kids Dash


Date: Sunday, July 5th

Start Times:

  • Half marathon – 7:00 am
  • 10k – 8:00 am
  • Kids dash – 9:00 am


Register online or on-site. Online registration will close at 8 p.m. Thursday, July 2nd. On-site registration will be available beginning at 6:15 am at the start line. You can also register at Twisted Trails on Lincoln Avenue between 6th and 7th Street on Friday, July 3rd from 4-6 pm.

Registration Fees:

  • 10k: $35
  • Half Marathon: $45
  • Kids Dash: Free
  • Please note that prices will increase by $10 for race day registrations and all packet pickup registrations. Register online to save.

Racers 17 & under: $15

T-Shirt: $10

No Refunds.

Packet Pick-Up:

Twisted Trails on Lincoln Avenue between 6th and 7th Street on Friday, July 3rd from 4-6 pm as well as at the start line.

Course Map

Course Description:

The 10k is an out and back on a relatively flat (for Steamboat!) course with one short steep hill as you make your way to the turnaround. The Half Marathon follows the same course as the 10k to begin, heading south on River Road paralleling the Yampa River for a time before turning right and heading uphill through Dakota Ridge. The half marathon course then continues on a rolling hilly road and circles back along River Road with fabulous views of the Steamboat Ski area and the Yampa Valley.

Aid stations will be stocked with water and Tailwind. Although there will be 3 different aid stations on the course, we highly recommend carrying your own hand-held water bottle to reduce waste and for your own hydration, especially for the half marathon. 10k runners will reach an aid station at approximately 2.5 miles and then again at 3.5 miles (after the turnaround). Half marathoners will reach an aid station at 2.5 miles, ~ 5.7 miles and one more at the turnaround on River Road; on the way back to the finish, half marathon runners will pass the first two aid stations again!  Even though there are several opportunities to pick up water at all of these aid stations, the route is very exposed to sun, so strongly recommend bringing your own water carrying device!

We will have port-o-potties at the start but will only have access to 1 on course for the half marathon that you cross at close to the 6 and 9 mile points. Due to the course location and adjacent private property, we cannot provide more. We are sorry for this inconvenience!

Driving Directions/Parking Information:

Please carpool, bike, take the free bus or walk from other downtown locations (including Howelsen Hill). There is NO parking at the start and no drop-offs directly at the start. You can park at the Howelsen Hill Sports Complex, which is ¼ mile away from the start line.  Runners CAN park at the Howelsen Ice Arena, rodeo grounds and Howelsen but not at the Parks and Rec building.

Awards and Post Race:

Prizes for 1st, 2nd and 3rd place males and females (No AG awards)

Every participant is automatically entered in our prize raffle, which will follow the awards ceremony.

Additional Information:

-The cutoff time for both races is 11:00 am. We do not offer an early start option for the half marathon. If you think you need more than 4 hours to complete the half marathon, or plan on walking the course, please sign up for the 10k to ensure participant safety.

-Please no pets on course. River road is not closed to traffic.

-Strollers will be allowed, but please keep in mind that this is a hilly course, and the majority of the race is on county roads, not closed to traffic.

Mountain Madness is a Sustainable Event! Please help us reduce waste by bringing your own cup or water bottle. We will have jugs of fresh water on course and at the finish line for you to refill!

Race Directors:

Luke Crespin,

Katie Black,

Please do not call Twisted Trails for any information about this race. They are only serving as our pre-registration location and are not directly affiliated with this event.

Course records (since 2010 when new current course was mandated):

Half Marathon:

Men: Darren Thomas, 2018, 1:15:59

Women: Emily Harrison, 2016, 1:24:19


Men: Lucas Crespin, 2016, 35:35

Women: Joanna Zeiger, 2016, 37:41