 Chachaklum was a relatively large site of secondary rank within the Motul de San José polity.Chachaklum's principal phase of occupation appears to date to the Terminal Classic period, during the 10th and 11th centuries AD.However, the site possesses massive basal platforms and these, together with the presence of the E-Group, suggests a longer occupational period than was immediately evident from the first excavations of the site.