In 12 days · Sat, Aug 8, 2026
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Saturday, August 8th, 2026
8991 Bellevue Heights Rd., Dubuque IA
Half
64–81°F · some rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2025
72–90°F
dry
2024
61–79°F
dry
2023
64–81°F
dry
2022
66–78°F
rain
2021
73–82°F
rain
2020
69–87°F
dry
2019
64–79°F
dry
2018
64–82°F
dry
2017
56–79°F
dry
2016
64–81°F
dry
Best months to race in Iowa →
Race-day forecast · Saturday, Aug 8
Cloudy · 58–71°F
Saturday, Aug 8starts near 58°F · 45% chance of rain · wind up to 10 mph
About this race
Event Overview
Come join the MoS crew annually on the second Saturday of August for 4mi, 7mi and half marathon distances on some of eastern Iowa’s best and most challenging trails! The routes through Mines of Spain will challenge you with their difficulty and inspire you with their beauty as they climb the bluffs for views of the Mississippi, make their way through tall grass prairies and weave through dense hardwood forests.
Terrain Details
The terrain is a diverse mix of dirt single and double track and wide prairie grass trails. There are some rocky, technical sections of trail as well as a few steep climbs but much of the course is smooth and runnable with just rolling hills to contend with.
Environmental Commitment
In keeping with the beauty of the natural environment, the races will be as environmentally-friendly and sustainable as possible with local food and beer along with cup free racing and a zero waste approach from pre race to post race.
Community Support
Profits will be returned to the Friends of the Mines of Spain to help maintain the trails.
Race Basics
- Who: You and like-minded runners who love sharing beautiful trails.
- What: 4mi, 7mi and half marathon distance races.
- Mini-Mines Trail Race: We will also again be hosting a free Mini-Mines Trail Race for kiddos ages 12 and under Friday evening during packet pickup. The Mini-Mines race will start at 6:30pm and there is no pre-registration required. We just ask that you show up early by 6:15pm Friday night to sign your little runners in.
- When: Packet pickup – Friday from 5PM-7PM and pre-race Saturday from 6:15AM-7:15AM. Races – Saturday starting at 7:30AM.
Location
Where? EB Lyons Nature Center- 8991 Bellevue Heights Rd, Dubuque, IA 52003
Why Participate?
Because running on trails is awesome!
Additional Information
Runners are encouraged to carpool or ride their bike as parking is limited and we want to limit our impact. Water and Tailwind Nutrition drink (excellent source of calories and nutrition) will be provided on the course along with some basic sweet/salty snack foods. All runners are strongly encouraged to bring a handheld water bottle or hydration pack as we are a cup free race and there will be no disposable cups provided on course.
Registration Link
For more details and to register, please visit the official race page: Mines of Spain Trail Races.
Course map
Train with a club
Run clubs near Dubuque to train with before race day.
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