Fifty one miles of desert out of Page: sandy jeep roads, exposed slickrock, steep climbs, ladders and short scrambles, with via ferrata and cable-assisted descents in the canyon sections. The route links Antelope Canyon, Deer Canyon, Ligai Si Anii and Antelope Ridge, then crosses open ground near Horseshoe Bend, Marble Canyon and Lake Powell before finishing on the Page Rim Trail. It starts at five in the morning with nineteen hours to finish.
The ground is what defines this course. The race calls it deep sand, rising slickrock, and more sand waiting on the other side, and its own description of the long courses lists sandy jeep roads, exposed slickrock, steep climbs, ladders and short scrambles, with sections of via ferrata and cable-assisted descents in the canyons. Runners have written about queueing at the fixed ladders while the field is still bunched. Trekking poles are permitted. The published climb is 5,019 feet across 51.7 miles, from a low point of 3,901 feet to a high point of 5,682 feet.
Antelope Canyon Ultras runs out of the Page Sports Complex in Page, Arizona, on a course of deep sand, open slickrock and slot canyons above the Colorado River. Four distances share the one start line: 50 Mile, 55K, 30K and a trail half marathon. The two long courses drop into narrow canyons on fixed ladders and cable-assisted sections, cross open desert near Horseshoe Bend, Marble Canyon and Lake Powell, and finish on the Page Rim Trail. It is run in early March, and the race says the terrain shows no mercy: deep sand, rising slickrock, and more sand waiting on the other side.
The first Antelope Canyon 50 Mile was run on 1 February 2014, with Matt Gunn as race director. Gunn had founded the Ultra Adventures series two years earlier with the Zion 100. The race sat in February through 2018 and has been held in March since 2019. The 2026 edition was put on by Vacation Races, and from 2027 the race is run by Aravaipa Running, which now directs Ultra Adventures.
| Mile | Station | Cutoff | Crew access | Bag | Pacer | Med | To next |
|---|---|---|---|---|---|---|---|
| 0.00 | Start | ? | ? | ? | ? | ? | 6.20 |
| 6.20 | Antelope Canyon | ? | ? | ? | ? | ● | 7.00 |
| 13.20 | Deer Canyon | ? | ? | ? | ? | ● | 8.40 |
| 21.60 | Ligai Si Anii | ? | ? | ? | ? | ● | 7.90 |
| 29.50 | Antelope Ridge | ? | ? | ? | ? | ● | 2.10 |
| 31.60 | Red Mesa Crew Access | ? | ● | ? | ● | ? | 5.00 |
| 36.60 | Horseshoe | ? | ? | ? | ? | ? | 7.60 |
| 44.20 | Lake Powell | ? | ? | ? | ? | ● | 7.50 |
| 51.70 | Finish | ? | ? | ? | ? | ? | ? |
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