Mines Of Spain Trail Races

Brave winter trails in Dubuque County at the Triple D Winter Endurance Race, featuring bike and run distances from 5K to 70 miles on the Heritage Trail and nearby routes. Finish at 7Hills for warm food, prizes and community celebration.

Run the scenic Mines of Spain in Dubuque on May 2, 2026 with 5K 10K and half marathon options. Enjoy clear course support, a custom bib and a rotating race item, plus post race food and a series gift if you register for the full series.

Test your legs on rugged, scenic loops at the Swiss Valley Trail Races with 50K, 25K and a 5.2 mile course. Enjoy creek crossings, big climbs, free camping and showers while supporting local conservation; registration opens Jan 1, 2026.

The Mines of Spain 100 offers 100 mile and 100 kilometer trail ultraruns on scenic loops around Dubuque's Mines of Spain. Expect rugged singletrack, steep climbs and Mississippi River views on a challenging multi loop course.