doors, for smoke outflow, these were proportional to the size of the room used. Stairs and ramps Constructed in buildings. Water system "Water retention systems". An irrigation system of channels, on terraces and embankments, took water from rivers, taking it into the city. The rectangular stone slabs channels 30 cm, were used to feed rooms; had a deposit that filtered used water in Temazcal or steam baths. There was also a drain system. The Site Cueva La Ranchería is larger than the "Cuarenta Casas" complex. It is 50 meters long and 20 m wide. Most of the rooms are two story and large. There are also granaries (Cuexcomate, see note below), somewhat damaged, made from adobe and straw, for maize storage. The site is located at the back of the canyon in a large semi hidden cave. It is ample and easily holds a complex of 50 rooms or more. Rooms The rooms are bigger than in other caves in the region, and many are two storied. Here lived a whole town. The foundation of this complex is a well-built stone trench; many of the rooms have walls and ceiling black by soot, although there are kind of chimneys. In one of the rooms the construction techniques for the first level ceiling can be appreciated, they used táscate and pine tree trunks, tied together and covered with clay. This holds the second floor and is supported by a pretty thick trunk, all blackened by soot. The room on the second floor is spacious and has a little room, as if used for children. Paintings In the walls of a section of the complex are a series of paquimé type paintings, with very simple geometric black motifs. The complex has a circular shaped partially destroyed silo. These silos stored corn, olotes dating back to ancient times can still be seen. Silos were made with pine straw and adobe, and circular shape. There is a very beautiful metate in perfect condition, many fragments of ceramics and lytic tools. Admiring these vestiges, it is easy to imagine the ancient people living here 1000 years ago; chatting, carrying water from the creek, storing and removing corn kernel, sharing their world so unknown to us. This forgotten site, in the middle of the forest in the canyon is almost intact. Other nearby caves There is another site nearby called Cueva de la Ranchería 2, where