White Ridge Bike Trails – San Ysidro, NM

BLM Info

It’s an unsupported, unmarked, free, fat ass style ultramarathon trail fun run at the White Mesa bike trails near San Ysidro.  It is about a 45 minute drive from ABQ.

White Mesa contains some of the most unusual and spectacular scenery in New Mexico.  The course is absolutely crazy.

Course: 4 loops for the 50k. There’s no 64k this year. Every trail intersection has a detailed map and location marker so it is very easy to navigate.  Loops 1 and 3 are clockwise, loops 2 and 4 are counter clockwise.  The map below shows the sequence of markers (as we found out in 2010, the mileage is not correct on the map).  Just follow the trail and you will be ok.  Each loop, you will record your time on a clip board.  You will have access to your car at the end of each loop.  You can also do a shorter combination of loops for a marathon, half marathon, or other distance.

You can register by leaving a comment below, or just show up and run.  Just remember, you are completely responsible and liable for yourself.

Course Records

1 Clifton Trujillo 5:54
1 Adam Steidler 5:54
2 Chris McElveny 5:55
3 James Breyfogle 5:56

13 Responses to “White Mesa 50k”

  1. Karen Ray said

    Could you please provide an exact address. I am new in town and I have a terrible time with directions. I’ll try Mapquest. Thank you!

  2. Perky said

    @Karen, get off I-25 at the Placitas/Bernalillo exit. Go through Bernalillo. Keep going (it seems like forever) through the construction zone (they were resurfacing the road when we went the other week). The turn for White Mesa/Ojito Wilderness is just after the natural gas refinery (looks like a whole bunch of grey tanks with vent stacks). The dirt road is just after that. Once you turn on the dirt road, stay to the left to Ojito Wilderness. If you go on the right fork you end up at the White Mesa Mines and someone will be there to let you know you’ve just trespassed. You’ll pass one minimal parking lot on your left. The one you want is a little bit farther and it LOOKS like a forest service-type parking lot. NOTE: no potties out there. Hit the McDonalds in Bernalillo on your way out for any substantial deposits.

  3. Perky said

    Here is a link to the pictures I took. They were only taken on the first loop. That was when optimism was at its prime!


  4. […] the rugged and remote terrain in San Ysidro, New Mexico, 25 spunky trail runners ran in the White Mesa FA Trail Run. Runners ran on the White Mesa Bike trails that contain a variety of gnarly terrain and […]

  5. Hey Mark Jones & I did the FULL 50k run as well. My phone died so I didn’t get our results from ‘Map my Run’. Which I truly regret. But we were out there when the sun went down. Had lots of fun!!

    Carma Harvey
    7-8 hours

  6. cooperkel said


  7. ctmnm said

    Oh, sweet. The new date allows me to start my BMDM training a week earlier. Thanks!

  8. Kelly Gallagher said

    Would love to join y’all! And, I promise to not die during the run…

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