This photo was taken by my friend Milton Otto during our exploration ride of the Sierra Gorda area of Mexico 2015.  Near the end of day 2 we were behind schedule and had a decision to make – ride pavement to Aquismon and arrive before dark or stick with the dirt and arrive after the sun had set.  One of our rules is to not ride in the dark in Mexico.  We split the difference – we rode a little more dirt and then pavement the rest of the way.