Tortugas Mountain 24 Hour Challenge

NOV
20
2026
A 24 hour trail race on Tortugas Mountain near Las Cruces NM with four mile laps, limited aid, cupless format, and donations supporting the Southern New Mexico Trail Alliance.
Fri 20 Nov 2026
24 Hour Challenge

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Tortugas Mountain 24 Hour Challenge

The Tortugas Mountain 24 Hour Challenge is a 24 hour trail race on Tortugas Mountain in Las Cruces, New Mexico. The event uses the Arroyo Loop trailhead at the Monte Vista Parking Lot as the start and finish area and follows a roughly four mile lap around the mountain.

The course is a rocky, rolling single track with some two-track sections. The first lap proceeds clockwise and subsequent laps alternate direction. The route is marked with orange or pink flagging with reflective tape, rock cairns, and brown BLM trail markers; flagging and reflective tape are continuously visible in line of sight.

Aid stations are located at the start/finish under the covered picnic area and at the two mile mark on course. Aid stations provide water and Heed electrolyte drink and offer minimal food, and the event is cupless so participants must bring their own drink vessels. Crews and supporters may attend the start/finish aid station.

Participants record each completed lap on a registration board at the start/finish and note the time corresponding to the official race clock. There is no requirement to be present for the entire 24 hour period; runners may leave and return and should mark themselves as away if they leave the course.

The event is offered as a free "Fatass" race with donations accepted for the Southern New Mexico Trail Alliance. The race is capped at 50 entrants; attendees are asked to cancel registrations they will not use and to consider donating lightly worn shoes to the local shelter. Visit the organization's website for the most recent information.

24 Hour Challenge

Events nearby

Jackalope Race in Doña Ana County on October 18, 2026 features trail run, Run+Ride, and mountain and gravel bike races over 20K, 47K, and 65K courses.
A last runner standing backyard ultra on October 30, 2026 at Prehistoric Trackways National Monument in Las Cruces with hourly 4.167 mile laps, aid, camping, and awards.
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