Expert Race - 55 Miles
200 spots left. Registration Opens November 26, 2026 at 12:00am CST
Sport Race - 35 Miles
200 spots left. Registration Opens November 26, 2026 at 12:00am CST
Beginner Race - 13 Miles
200 spots left. Registration Opens November 26, 2026 at 12:00am CST
E-Bike Sport - 35 Miles
200 spots left. Registration Opens November 26, 2026 at 12:00am CST
Trail Run Short Loop ~ 3-4 miles
Trail Run Long Loop ~ 12-13 miles
Ride. Run. Celebrate the trails — North Dakota style.
Welcome to the Otter Creek Trail Festival, a two-day celebration of off-road adventure at Harmon Lake Recreation Area near Mandan, North Dakota.
Compete in the Otter Creek Trail Run or the Otter Creek Mountain Bike Race — then stick around for camping, food, and family fun at one of North Dakota’s most scenic outdoor venues.
🌟 Festival Overview 🌟
Date: June 11-12, 2027
Location: Harmon Lake, Mandan, ND
Events: Trail Run | Mountain Bike Race
Host: 701 Cycle & Sport
The Otter Creek Trail Festival is a weekend designed for everyone — from first-time trail runners to expert mountain bikers chasing podium spots. Come for the race, stay for the community, and experience why Harmon Lake is North Dakota’s favorite summer trail destination.
Otter Creek Trail Run
Friday, June 11
Start Time
- 6:00pm
Distances
- Short Loop: Distance Coming Soon
- Long Loop: Distance Coming Soon
- Recognition for Top 3 Podium Places in both events
- Age group awards across both distances
What’s Included
- Chip timing for all categories
- Free event swag
- On-course aid station
- Complimentary meal + drink
This evening race kicks off the Otter Creek weekend — perfect for trail runners, adventure seekers, or mountain bikers looking to double up.
Experience Harmon Lake’s singletrack trails from a runner’s perspective.
Otter Creek Mountain Bike Race
Saturday, June 12
Categories & Distances
- Beginner: 13 miles
- Sport: 35 miles
- Expert: 55 miles (3 laps)
- E-Bike Category: Offered for Sport Race. Not eligible for overall podium awards
Cash Prize info Coming Soon
What’s Included
- Chip timing for all categories
- Free race t-shirt (register by May 26)
- On-course aid station
- Complimentary meal + drink
Participant Cap: 200 racers — register early to secure your spot.
📍 The Otter Creek MTB Race is part of the 701 Series — a premier North Dakota race series uniting cyclists from across the state.
👨👩👧👦 Family Pricing
We’re making it easier for families to enjoy the Otter Creek Trail Festival together.
Register three or more participants at the same time and receive $5 off per registrant.
Whether you’re racing side-by-side or cheering each other on, this is your chance to share the trails and the experience.
🟢 Discount automatically applied during group registration checkout.
🏕️ Camping & Weekend Fun
Stay right onsite at Harmon Lake Campground — first-come, first-serve sites available.
Enjoy a weekend full of outdoor fun with a swimming beach, playground, and plenty of family-friendly recreation.
📌 Campground fills up quickly — plan ahead for the best spots.
🌲 Course Details
The Harmon Lake trail system features nearly 20 miles of professionally built singletrack weaving through rolling prairie hills. Expect a mix of shaded technical sections, fast-flowing stretches, and scenic lake views that make this course one of North Dakota’s best
Course maps & elevation profiles linked above.
⚠️ Policies ⚠️
Refund Policy:
No refunds. No exceptions.
Weather Policy:
In the case of unsafe weather or uncontrollable conditions, race directors may alter or cancel the event for participant safety.
Sponsors List
Presenting Sponsor
Sponsors List
Platinum Level Sponsor
Sponsors List
Race Partner Sponsors
