Chances are you ran into an UFO at the Tepozteco mountain.
There's a pyramid at the top of the mountain and it is said UFO's go there to take energy.
I have taken some pictures with strange objets in the sky (like in the picture) but I'm not sure they are UFO's but there are plenty of videos taken by locals and even the Mexican TV.
Amatlan its a small town sourronded by higesth and espectacular mountains, a place to walk, ask to the locals wheres is the door (la puerta) i relly enjoy the hicking and the door its its a hippy camp, with tipis, whit a great wall of stone, a mistical place, you can stay in a tipi for $10 US there are a restaurant and another services like massage, temazcal (aztec sauna) Eat the local quesadillas, There´s a two 4 star hotel in the town, the view in those places its really cool.
The leyend says in this places born Quetzacoatl