Indian Peaks


XTERRA Indian Peaks

Eldora Mountain Resort

August 10, 2019




WHAT:   XTERRA Indian Peaks

WHEN:  August 10, 2019

WHERE:  Eldora Mountain Resort, Nederland, CO, 80466  (map it)  

*Recently named runner-up for Best of the Rockies 2019 Triathlon in Elevation Outdoors Magazine. 

Located only 21 miles west of the triathlon mecca Boulder, the 9th XTERRA Indian Peaks Triathlon and Trail races on August 10th take you up and into the beautiful trails of the Eldora Nordic Center. These races are on true trail venues with a bit of dirt road, double track, single track and even a bit of "barely any there" track. It all ends up at the Indians Peak Lodge where you have live music, food trucks, beer, and great prizes. It all starts with newly renamed Indian Peaks Trail 10k and 5k trail runs (formerly the Eldora Trail 10k/5k) at 7:30. The trails will take you on short steep climbs, meandering jobs through the forest, a technical descent, and in a number of places where the trail is so soft, you won't hear your steps. The triathlons follow beginning at 9:15. Our classic race continues to challenge all comers with a 1000m swim in chilly Peterson Lake, a 600m dash to the transition area onto a 22km two-loop bike course and finally a 7km run course that many consider to be the most epic of all XTERRA run courses. You have to experience it to understand it.

New this year we will offer a paddleboard version of the classic course where those that don't like to swim can paddle the 1000m swim course. Also, we will offer a new Sprint version with a 500m swim, a 12km one lap bike course, and a 4k trail run.




Distance 1000 Meter Swim | 22K Mountain Bike | 7K Trail Run 

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Distance:  500 Meter Swim | 12K Mountain Bike | 4K Trail Run

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Distance 1000 Meter Paddleboard | 22K Mountain Bike | 7K Trail Run 

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Distance 5K and 10K Trail Run


For XTERRA Indian Peaks race questions please contact Paul Karlsson:  paul [at] or  303-960-8129

Note: Please do not contact for questions about this specific race.  Use the email and/or number provided here.


What is the elevation of Eldora?
9,200 at the transition area. The top of the bike course is at 9,700'
What is the water temperature of Lake Peterson?
Usually between 57-63 degrees, thus wetsuits are required.
Where can I rent a wet suit?
ou can visit Colorado Multisport in Boulder or Runner's Roost in Denver.
Will there be a pre-ride of the course?
On Satuday July 27th at 10:00am there will be an organized pre-ride and the course will be marked
and open on Wednesday evening August 7th.
Why can't I preride the course except for on July 27st or the three days before the race?
The entire course is located on private land and is used by those landowners in the summer
months. They have been nice enough to allow us the use of their land for a few days.
How technical is the course?
The bike course will challenge all riders but all of the course is very rideable. There are a few short
steep climbs with loose rocks and 1/2 mile long tight downhill on each lap. The run is exciting as it
includes tight forest runs where you have to pay attention to course markings and a few just awful
grunt uphills ranging from 50 feet to 75 yards.
Can I switch races?
Yes, there is a $5 fee to switch except on race day where the fee will $10.
Can I or my family volunteer?
Of course. We are always in need of volunteers and it is truly a blast and a way to give back to the
sport. Just drop us a line at volunteer [at]



Volunteers are always needed at our events. We need lifeguards, course marshals, aid station workers, finish line help and more. Each volunteer gets a high-quality cotton shirt, lunch, and drinks.

If you are part of a school or non-profit group we will donate $25 to your organization for each volunteer you provide. Competitors can receive up to half of their entry refunded or a credit for future races if they help set up or take down.

Email volunteer [at] if you're interested in helping out.

Race Info

Schedule of Events

Saturday July 27
9:00am- Organized pre-ride of the courses at Eldora Mountain Resort. Please do not be late as you
won't be able to find us once we start.

Wednesday August 7-9
Course will be open for pre-riding and running. Please park outside of the gates of Eldora.

Friday August 9
2:00-6:00pm Packet Pick-up and late registration,
Runners Roost Lakewood at 7978 W. Alameda Ave Unit A Lakewood, CO or
Runners Roost Boulder at 629 S. Broadway Suite E, Boulder, CO

Saturday August 10
6:00am: Parking lot opens.
7:00am: Late packet pick-up opens
7:00am: Transition area opens
7:30am: XTERRA Indian Peaks Trail 10km starts. **Because of the trail run there will be no pre-riding
of the courses on race day.
7:45am: XTERRA Indian Peaks Trail 5km starts
8:45am: Transition area closes
9:00am: Pre-race meeting at Peterson Lake
9:15am: XTERRA Paddleboard Triathlon starts, Mass Start
9:30am: Classic Course first racer begins in a time trial start. Racers will be sent off in 3 second
10:00am: Sprint Triathlon begins as a time trial start.
11:20am: Estimated time of the first finisher at Indian Peaks Lodge.
11:30am: Lunch begins at lawn of Indian Peaks Lodge- Basic Kneads Pizza truck plus more
1:00pm(ish): Awards ceremony begins.

Course Info - XTERRA Triathlon

Distances:  1000 meter swim | 22K mountain bike | 7K trail run

A 1000m swim in 64-degree Peterson Lake (wet suits required). After exiting the water you'll run
600m uphill to the transition area. Leaving transition you will head up into the Eldora Nordic Center
for a two-loop bike course, each loop is 9km long. The bike course will be marked in blue XTERRA
signs and white XTERRA tape. Once you start on the loops it is all single track or double track.
There is plenty of room for passing and some short gnarly climbs. Finally, you'll encounter the 7km
bike course that is simply a bit of everything, marked with red XTERRA signs. You'll run on single
and double track and in a few areas that the trail is so faint that we mark it survey flags. The race
finishes behind the Indian Peaks Lodge to a big 'ol party.

The sprint course does a shorter swim loop, only one lap of the bike course, and at 1.3 miles into
the run the runners will be directed onto the last 1.2 miles of the classic run course.

Indian Peaks Course Map


Traveling from Boulder or Denver take US36 into Boulder and head west on CO119/Canyon Blvd. Take Boulder Canyon west for 18 miles to the unique town of Nederland and as you come into town take the second exit on the roundabout to continue out of town on 119. As you exit town turn right onto Eldorado Road and then follow the signs to the Eldora Mtn Resort.

If you are coming from Golden or south of Denver take CO93 out of Golden towards Boulder. Seven miles north of Golden turn left onto CO72 and into Coal Creek Canyon for the next 18 miles. CO72 ends at CO119 where you will turn right and then 3 miles later turn left onto Eldorado Road and up to Eldora. 

Register Today for XTERRA Indian Peaks! Register x

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