Jemez Mountain Trail Runs

Los Alamos, New Mexico, United States

15 May 2027

Provisional Not open

A high-altitude race in the Jemez Mountains near Los Alamos, with a 50 mile, 50K and half marathon at 7,000 to 10,000 ft.

Train for this race

About

The Jemez Mountain Trail Runs take place above Los Alamos in the Jemez Mountains of northern New Mexico. The 50 mile is a Western States qualifier that climbs over 10,000 ft of altitude.

The courses cover volcanic ash, steep climbs and long alpine meadows.

Distances

Name Distance Gain Loss Vert / km Min altitude Max altitude Start Start location Finish Course Cutoff Terrain Technicality Aid stations Badges Entry fee
Jemez 50 Mile 80.5 km 2,950 m — 36.6 m/km — — 15 May 2027 06:00 America/Denver Los Alamos Los Alamos Loop — Mountain — — — —
Jemez 50K 50 km 2,000 m — 40.0 m/km — — 15 May 2027 Los Alamos Los Alamos Loop — Mountain — — — —
Jemez 50 Mile terrain notes

Altitude singletrack and volcanic terrain around the Jemez range.

Jemez 50K terrain notes

Altitude singletrack and volcanic terrain.

Registration

Status
Not open
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Links

Notes

Mid-May.

Last verified 14 Nov 2026

Image: Jemez Mountain Trail Runs