This mound, identified as the Low Temple Mound, reached 10 feet in height and measured 140 by 90 feet. Archaeological evidence shows that temple mounds like this were built up gradually over centuries, with structures being deliberately destroyed and buried under new layers of earth. At this site, remnants of at least two structures were found beneath the mound, and more were likely once atop it before erosion. Mound building generally involved a cycle of ceremonially burning temples, covering them with earth, and rebuilding atop the enlarged mound. Archaeologists continue to debate why temples were intentionally destroyed.