8 hours
Hormiguero was reported by Karl Ruppert and John Dennison during his second expedition to Campeche, sent by the Carnegie Institution of Washington, in April 1933. However, it was not until 1979 that the first conservation and excavation work in the area was undertaken. Today we know that the period of greatest occupation of the site has been recorded, according to archaeological evidence, between 600 and 800 AD, within the period known as the Late Classic.