Astro Trail: Run beneath the starlit canopy of Sierra de Santiago.
As twilight fades, the mountains reveal their untamed, mysterious side. Kicking off at 6:00 PM right as sunset ignites the ridges, Astro Trail throws you into a deep-night adventure under an open, star-filled sky. Sharing legendary segments of the iconic Oso Negro course, the route takes you deep through the alpine pine-oak forests of Santiago, crossing famed high points like Puerto Gringo with breathtaking vistas over shadowed valleys. Switch on your headlamp, sharpen your instincts, and conquer the silence of the high sierra.
Aid station 🍌 food 💧 drinks
| MALES | |
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| Free, 18 years & up | |
| FEMALES | |
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