Mines of Spain Trail Races
About this race
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.
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.
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.
Profits will be returned to the Friends of the Mines of Spain to help maintain the trails.
Basics
Who? You and like-minded runners who love sharing beautiful trails.
What? 4mi, 7mi and half marathon distance races.
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.
Where? EB Lyons Nature Center- 8991 Bellevue Heights Rd, Dubuque, IA 52003
Why? Because running on trails is awesome!
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.
Pick your distance
Trail running
Half Marathon
7 Mile
4 Mile
Typical race-day weather
Based on 2 years of Open-Meteo archive data for this event's race dates in Dubuque, plus the 3 days either side.
The sun rises at 6:02 AM and sets at 8:14 PM local time (CDT) in Dubuque on August 8, 2026 — 14h 11m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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2026 results — Mines of Spain Trail Races
302 finishers across 3 distances · leading places in the Half Marathon
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | Dan Froeschle | 1:24:30 | 6:27 /mi |
| 2 | Brett Rosauer | 1:25:42 | 6:33 /mi |
| 3 | Ross Salinas | 1:28:14 | 6:44 /mi |
| 4 | Nick Hird | 1:32:33 | 7:04 /mi |
| 5 | Elliott Klauer | 1:36:24 | 7:22 /mi |
Every finisher is on the results page, filterable by distance, gender and age group.
All results by year
Other races near Dubuque
Different organizers, within 40 miles, in the next three months
Mines of Spain 100
Blue Bowling 4 Boobs-Dubuque
Turkey Trot at Wahlert High School
Galena River Fall Half Marathon & 8k
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 7 Dubuque events
Spotted something wrong? Tell us and we'll fix it.