Mines of Spain Trail Races
Mines of Spain Trail Races logo

Mines of Spain Trail Races

Dubuque, Iowa, United States
Aug 08, 2026
Trail running

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

Aug 08, 2026 Half-Marathon 7:30 AM
Closed

7 Mile

Aug 08, 2026 11.3K 7:45 AM
Closed

4 Mile

Aug 08, 2026 6.4K 7:45 AM
Closed

Typical race-day weather

Based on 2 years of historical conditions on this event's race dates in Dubuque.

Temp (°C)
Minimum temperature (race-day average) 20.3° / Maximum temperature (race-day average) 26.8°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average) 20.3° / Maximum feels like — heat index / wind chill (race-day average) 26.8°
Wind (km/h)
Average wind speed (race-day average)
18.7
Precip (mm)
Average precipitation (race-day average)
9.2mm
Humidity
Average relative humidity (race-day average)
82.5%

About Dubuque

Mines of Spain Trail Races takes place in Dubuque, Iowa, United States. The local timezone is America/Chicago.

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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.

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