Longest Dam Race

JUN
20
2026
Run or ride across the top of Fort Peck Dam at The Longest Dam Race with 10K and 5K runs, a 10 mile novice bike ride, plus a 5K walk and 1 mile family course. Enjoy dramatic dam views and a downhill finish into Kiwanis Park.
Sat 20 Jun 2026
10 kilometers 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Event

The Longest Dam Race takes place on Saturday, June 20, 2026, in Fort Peck, MT at Yellowstone Rd - Downstream Recreation Area. Events include:

  • 10K Run
  • 5K Run
  • 5K Walk Only
  • 10-Mile Novice Bike Ride
  • 1-Mile Run/Walk

Registration opens February 20, 2026 at 9:00am MST. The entry fee for each event is $25. Events are open to ages 1 to 100. All events finish at Kiwanis Park.

Course details

The 10K and 5K events start at the Fort Peck Dam Shaft Houses on Hwy 24 and run across the top of the dam. The 10K includes a 3.1-mile turnaround on the dam, then descends about 350 feet on a gravel/dirt road before finishing on pavement at Kiwanis Park. The 5K follows the same descent but does not include the turnaround. The 5K Walk follows the same 5K course as the runners. The 1-mile Run/Walk is a fully paved nature trail at Kiwanis Park and is described as flat. The 10-mile Novice Bike Ride starts at the top of the dam, crosses and returns, then continues past the start and descends to flatter terrain toward Kiwanis Park. Visit the organization's website for the most recent information.

10 km
10k Run
5 km
5k Run
5 km
5k Walk
1 Mile Run/walk
10 Mile Novice Bike Race