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Comstock, TX, seen from above
March 2027 · date to be announced

Border to Badlands Ultra

Comstock, Texas · United States
UltraDesert50% trail

Desert canyons near the Rio Grande borderlands

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Course

Loop courses in Seminole Canyon State Park near Comstock, starting and finishing half a mile down the trail from the Canyon Rim Trailhead car park. The footing splits roughly evenly between technical singletrack and dirt jeep road, over flat to gently rolling country along the canyon rim where Seminole Canyon meets the Rio Grande, past prehistoric cave art. Aid stations sit every three to five miles.

50 Mile50 mi
50K50 km
Marathon42.2 km
Half Marathon21.1 km
10K10 km

Key dates

Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.

About

Border to Badlands Ultra is a trail ultramarathon hosted by Ultra Expeditions near Comstock, Texas, in the rugged canyon country along the Rio Grande borderlands. Distance options range from a 10K up to a 50-mile ultramarathon, drawing runners into one of the most remote corners of West Texas.

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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.