Cracked and blackened ware is the penalty of inexperience and carelessness. Only with considerable practice can pottery be fired successfully. The vessels and the surrounding fuel of the dry dung must be so placed, and the fire must be so controlled that, while perfect combustion takes place, high temperature shall not develop too quickly. Cracked and blackened ware is the penalty of inexperience and carelessness. Two ancient ruined pueblos are found on the top of the rock .
Plaster is applied with the bare hands and the wash by means of a fleece mitten.
The outer walls are re-plastered usually once a year, and the inside walls are whitewashed two or three times annually. In the ruins there is evidence that often the stones were shaped. This portrait may well be taken as representative of the typical Pueblo physiognomy. Only a people as frugal as all the Pueblos in the use of fuel could still have an available supply in a region so poorly provided by nature. In the early eighties one of the house groups of Zuni rose to a height of six well defined stories.