15 Mile

The 2019 15 mile course is unchanged (GPX). See the 2019 courses map for details. 

50k and 50 Mile

The 2019 50km course will be the same as 2018 (GPX). See the 2019 courses map for details. 


The 2019 50 mile course has changed a good bit from previous years. The 2019 courses map shows the new 50 mile course. Please see the February 10, 2019 JMTR blog update for details on the new 50 mile course. Here's the GPX file for the 2019 50 mile course.

Start: Posse Lodge, North Mesa in Los Alamos, NM. The 50 mile run starts at 5:00am, the 50 kilometer starts at 6:00am, and the 15 mile starts at 8:00am.

Directions to start/finish: Take Diamond Drive north to the roundabout. Go straight through the roundabout and up the hill onto North Mesa. The Posse Lodge is approximately 1 mile from the round about. (Google map of Posse Lodge).

Cutoffs for 2019 50 mile race:

  • Quemazon Aid Station (mile 25.4) – 12:45pm

  • Mitchell Aid Station (mile 47.2) – 8:15pm

  • Also, 50k cutoffs apply to 50 mile runners (see below.)

Cutoffs for 2019 50k race:

  • Camp May Road Aid Station (mile 21.7) - 3:00pm 

  • Quemazon Aid Station (mile 25.4) - 5:00pm

Aid Stations: Aid Stations Driving Directions for crew/spectators can be found in the 2019 JMTR Runners Manual.

Maps of the Los Alamos Area marked map of Los Alamos townsite.


Pacers are allowed in the 50 mile race starting at the Mitchell AS (first time though) at approximately 32 miles. You can also get a pacer at the second pass through the Mitchell Aid station at ~47 miles. No pacers are allowed for the 50km and 15 mile races.

Geospatial PDF Course Map

Geospatial course maps allow you to view your location on a PDF document on your mobile device. We recommend installing the free Avenza app (iOS or Android) for viewing our geospatial PDF course maps. Once you have the Avenza app installed, download and add any or all of the geospatial PDF course maps below:


There are many ways to add one of the above maps in your Avenza app. Perhaps the easiest is to add via URL:

  1. Install the Avenza PDF Maps app on your smartphone (available for iOS and Android).

  2. Click the + button (top right) to add a map.

  3. Click the "from URL" option (bottom).

  4. Copy and paste this URL: https://caltopo.com/p/7009 (NOTE: It is not necessary to open the link in a web browser).

  5. Wait for the map to download and process.

  6. Open the map.

  7. View your location on the map.

Here's a YouTube video showing how to add via URL. Copy the URL from the link above to add to Avenza via URL (at 1:27 in the video below):

© 2019 High Altitude Athletics Club (HAAC)