Vague reports had been in circulation for some years as to the existence of a mound close to the headwaters of the Rio Hondo, where the Indians still practiced to some extent their ancient religion. It was said that the mound contained a stone chamber in which stood on a stone pedestal a life-sized image, painted in various colors, and that around the walls of the chamber were niches in which rested life-sized stone turtles, also painted; furthermore, that the bush Indians of the neighborhood were in the habit of coming to the mound for the purpose of burning incense before the idol. The mound was found situated quite close to the bank of the Rio Hondo, buried in the bush which covers this part of Yucatan. It was 80 feet in height, 350 feet in circumference, conical in shape, and completely covered by high bush continuous with that of the surrounding forest. After clearing the underbrush from the mound an opening 3 feet square was discovered about 17 feet from the summit of the mound on its northern aspect, the walls of which were faced with cut stone. From this opening a low passage led to a small stone-faced chamber 8 feet high, 6 feet broad, and 10 feet long, the floor of which was composed of earth and lime well beaten down to form a hard, smooth surface. Projecting from the walls were eight small stone brackets, upon which nothing was found. No trace whatever was seen of a painted image or of turtles. The walls and ceiling of the room, especially the latter, were considerably blackened by smoke, possibly caused by burning incense. [Illustration: FIG. 31.--Obsidian object and pottery vase from Mound No. 10.]