Friends of Yellow River State Forest Trail Run

Event Overview

The Friends of Yellow River State Forest Trail Run is the seventh annual running event held in the state forest. It takes place over two days, with events on May 8 and 9, 2026. The event is organized by the Friends of Yellow River State Forest, a nonprofit organization whose mission is to enhance the forest for public use while protecting its natural environment.

Events and Registration

The event offers four trail run/walk distances:

• Fast, Flat, and Family-Friendly 5K on Friday.
• Saturday 5K
• 10K on Saturday.
• Half Marathon on Saturday.

Participants can register for a "Dirty Double" by combining the Friday night run with a Saturday race for a discounted price. Dirty Double participants receive a hand-crafted race mug. Standard registration prices are $35 for the 5K events, $45 for the 10K, and $55 for the half marathon. Prices increase by $5 starting April 1, and online registration closes on May 6, though walk-ins are welcome. Registration by April 20 is required to receive an event shirt.

Additional Information

All ages are welcome. Children must be accompanied by a registered adult, and those over age 12 must be registered. Well-behaved dogs on a leash are allowed. The Friday night 5K is described as family-friendly, though strollers may be difficult on the existing trails. The races will be timed, and winners in multiple age and gender categories will receive prizes, including canvases featuring local photography. The course distances are noted as not exact due to the use of existing trails. Check-in begins one hour before each race at the YRSF Office on State Forest Road in Harpers Ferry, Iowa. Visit the organization's website for the most recent information.