Set your sights on the Old Pueblo Endurance Runs on March 7, 2026, in Sonoita, Arizona, where you can tackle either a challenging 50-mile or 25-mile ultramarathon. This historic event, one of Arizona's oldest trail ultras, takes you deep into the rugged beauty of the Santa Rita Mountains. The course begins and ends at the scenic Kentucky Camp, a historic mining site at an elevation of 5142 feet, offering runners a unique journey through a landscape rich with history.

The Old Pueblo Endurance Runs unfold across a demanding 25-mile loop (two loops for 50-mile participants), featuring 100% un-paved forest service roads and singletrack trails, including segments of the famed Arizona Trail. Runners will navigate rolling terrain with rocky, rutted ascents and descents, and sections of sand and fine gravel, all while being treated to constant, breathtaking views of the majestic Mt. Wrightson, which looms at 9452 feet. The elevation ranges from 4031 feet to a high point of 6232 feet at Jerry's Pass, presenting an average grade of 6% that promises a true test of endurance. For 2026, the course has been revised to guide runners through Fish Canyon from Melendrez Pass to the Cave Creek aid station, enhancing the adventure.

Aid stations, strategically placed approximately every 5-6 miles, are well-stocked with essentials like water, electrolyte drinks, fruits, sandwiches, and hot soup, with hamburgers available at the start/finish. Drop bags are permitted at all aid stations for your convenience, though crew access is restricted at Melendrez Pass. Beyond the rewarding trails, the Old Pueblo Endurance Runs offers a special experience: 50-mile male and female first and second-place finishers receive an automatic entry into the prestigious Angeles Crest 100. Finishers are celebrated with unique awards, sponsor swag, and a hearty post-race cookout. Expect typical race day conditions with highs around 67°F and lows around 34°F, with a minimal 3% chance of precipitation, creating ideal cool desert running weather.