 Structures 4 and 8 have been investigated, revealing that Buena Vista was probably occupied from the Middle Preclassic through to the Late Classic, with a much reduced population in the Early Postclassic.The site was surveyed in 2000 and preliminary excavations took place in 2001.The main pyramids of Motul de San José are visible from Buena Vista, as is a large part of the lake.