Los Alamos, NM, United States · Saturday, May 9, 2026

Fixed Distance 50 mi

Jemez Mountain 50mi Trail Run

Race completed
80 km Distance
not publishedn/a Climbing
4.0 est Grit · Challenging

Calculated from 80 km alone — the organiser has not published an elevation profile. Read 4.0 as a floor, not a verdict.

35.8881° N, 106.3070° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~56 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, May

Daytime high 21°C
Night low 4°C
Rainfall Dry — rain unlikely
Daylight 13 h 52 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 2346 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 80 km of trail.

  • Trail Running Shoes80 km of trail — cushioning that is still there in the last quarter.
  • Race Nutrition80 km of self-supported fuelling between aid stations.
  • Hydration VestsFlask capacity for 80 km, without the bounce.
  • Headlamps80 km almost certainly means running into the night.
  • GPS WatchesBattery life first — a 80 km day outlasts most full-GPS modes.
All gear guides →

Course Notes

Single track trails and dirt roads in and around Los Alamos, NM in the scenic Jemez Mountains.

Similar races

Other 50 mi trail ultras, closest in distance first.