Plazuelas

Plazuelas is a prehispanic archaeological site located just north of San Juan el Alto, some 2.7 kilometers (1.57 mi.) north of federal highway 90 (Pénjamo-Guadalajara), and about 11 kilometers (6.8 mi.) west of the city of Pénjamo in the state of Guanajuato, Mexico. The site is open to the public; it is dominated by a large, rectangular plaza with several pyramidal structures and platforms, along with a massive ball court. To the north of the structures is a field of boulders with thousands of glyphs carved into them.

• http://en.wikipedia.org/wiki/Plazuelas