The next stop was Puebla, where I had a look at another archeological site with colourful wallpaintings. I passed Mexico City and headed north towards Los Mochis, to board the famous "Chepe" - the train that runs between the pacific coast and the town of Chihuahua. We headed through flat land first, fields  of small sunflowers and corn, later loads of cacti and yellow dry grass, and then we passed the first tunnels and marveled at  the beautiful landscape of canyons and rivers. I didn't go all the way to Chihuahua but stopped in the little village of Creel on the way to have a closer look at the Copper Canyon the next day.