Tepeilhuitl
Thirteenth veintena of the xiuhpōhualli / From Wikipedia, the free encyclopedia
Tepeilhuitl is the name of the thirteenth month of the Aztec calendar. It is also a festival in the Aztec religion dedicated to Popocatepetl, Iztaccihuatl and Tlaloc. It is called the festival or feast of the Mountains.[1][2][3]