Getting to Willow Creek Retreat HouseCrestone, Colorado is a little out of the way, and well worth the drive, Crestone is located in the San Luis Valley in the heart of the Sangre De Cristo Mountains in south/central Colorado, about 200 miles south of Denver and 200 miles north of Sante Fe. The two closet citys are Salida, CO and Alamosa, CO (Adams state collage) Alamosa has a small airport with daily flights to DenverOur zip code is 81131 if you use Mapquest, GoogleMaps or Yahoo Maps