was named Structure A, excavations were extended following in both directions, removing dirt and rubbish. In addition to Structure A, other structures were found around the site. It is important to point out that according to Purépecha architectonic tradition, temples and their foundations always were built on top of natural hills, over an artificial platform, or, as in the Huandacareo case, over platforms and plazas, for this purpose they built retention walls embedded to the mountain slopes. The site has been reconstructed, to differentiate original sections from those reconstructed; new sections are recessed five centimeter in average from the original sections. From the first excavations season of 1977, five more seasons took place ending in 1983, since then, no further work has been performed. As a result of the little attention the place is neglected. Historical brief The site dates back to pre-Hispanic times and was part of the region oldest cultures in the region, known as "Chupícuaro", which was based in the creeks of the Cuitzeo Lake. They received Teotihuacán and pre-Purépecha influence. Later they were conquered by Purépechas, to whom tributes were paid. According to tradition, the Cazonci, leading an army, marched towards Yuriria-Púndaro to fight certain tribes that were attacking the place and, after defeating them, the victorious army while returning home via the Cuitzeo Lake, stopped somewhere near the lake shores, to participate in festivities that celebrated the victory. Cazonci listened to numerous speeches in his honor and in agreement with tradition, as of that moment the place was called Huandacareo. Huandacareo is one of many sites around the Cuitzeo Lake basin. It is a culturally important zone within the Michoacan region, from lake resources exploitation evidence from pre-Hispanic times. There are few studies of this type paleolithic environment in the country, in spite of information offered to anthropology. These include testimonies of the nutritional and artisan products that have been obtained throughout history, but also about the communication and transportation used by people. Not counting their importance until recently, such as hundreds of bird flocks refuge that migrate to hibernate. Given specific natural conditions, these ecological niches then worked to tie diverse human groups within the essential ancient trade networks. Part of the historical information about this site, comes from the "Relación de Michoacan" (1542), the essential 16th century document that makes reference to this native community. By such reference it is known that the