Principal English Translation:
a location near Tepetzinco, in the midst of the lagoon near Mexico Tenochtitlan; important in rituals
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 2 -- The Ceremonies, No. 14, Part III, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1951), 68.
Attestations from sources in English:
During the four days of dancing and singing prior to the slaying of the captive who was prepared in the month of Toxcatl to represent the deity, Tezcatlipoca, Tepepulco (near Tepetzinco) was the location for dancing on the fourth day.
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 2 -- The Ceremonies, No. 14, Part III, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1951), 68.