Pausanias Description of Greece 6.22.1

[1]
  Going forward about a stade from the grave one sees traces of a sanctuary of Artemis, surnamed Cordax because the followers of Pelops celebrated their victory by the side of this goddess and danced the cordax, a dance peculiar to the dwellers round Mount Sipylus. Not far from the sanctuary is a small building containing a bronze chest, in which are kept the bones of Pelops. Of the wall and of the rest of the building there were no remains, but vines were planted over all the district where Pisa stood.

[1] As one proceeds about a stadium-length from the tomb,there are traces of a sanctuary of Artemis surnamed Kordakā— because the followers of Pelops celebrated [ agein] a victory-feast [ epi-nīkia] at the place of the goddess and danced [ orkhēsasthai] a local [ epikhōrios] dance [ orkhēsis] called the kordax—local, that is, to those who dwell in the vicinity of Mount Sipylos. Not far from the sanctuary [ hieron] is a small building [ oikēma] containing a bronze chest [ kibōtos], and the the bones of Pelops are kept in this chest [ kibōtos]. Of the wall and of the rest of the building, there were no remains, but vines were planted over all the place [ khōrion] where Pisa stood.