The Rio Grande 100 starts and finishes on the banks of the mighty Rio Grande River in beautiful South Fork, Colorado. The race takes you though the amazing La Garita mountains, from arid forest to alpine tundra peaking out over 12,000 foot above sea level 4 times. You will enjoy golden aspen leaf covered trails and more rocks than you will care to remember. The Rio Grande 100 has all the challenge the Rocky Mountains have to provide with a fun low key race vibe that crew and racers will love.