“Pueblos are traditional communities of aboriginal Americans in the southwestern United States of America. The communities are recognized worldwide for adobe buildings, which are sometimes called “pueblos,” although some pueblos only have a few of these buildings still standing.”

I then searched on Adobe in Wikipedia and found this as the composition of adobe for the pueblos:

“An adobe brick is made of clay mixed with water and an organic material such as straw or animal dung. The soil composition typically contains clay and sand. Straw is useful in binding the brick together and allowing the brick to dry evenly. Dung offers the same advantage and is also added to repel insects. The mixture is roughly half sand (50%), one-third clay (35%), and one-sixth straw (15%).”

Links below have some pictures of what a pueblo looks like.