Description:23 15 35 00 Mexico, construction of a rail, big works. Workers on the road, among mountains, dig road, pneumatic drills. Line crosses Mexico, bulldozer removes engraved. Jeep passes under a waterfall of water. Jeep crosses running of water, looks like an expedition, difficult ground, crack, cliffs. Workers build a tunnel to cross the mountain and work on tunnel. Machine screws enormous ankles for the fixation of rails. Workers with forks and shovels put stones, pebbles between rails. Mexican with mustache and hat, train appears, goes out of the tunnel.