128 PUEBLO ARCHITECTURE. 
When this mat is used for closing the kiva opening it is usually held in 
place by several large stone slabs laid over it. Fig. 29 illustrates a 
specimen of the Tusayan kiva mat. 
Fig. 29. Mat used in ciosing the entrance of Tusayan kivas. 
The above kiva plans show that each of the illustrated examples is 
provided with four long narrow planks, set in the kiva floor close to the 
