 The masonry style of this complex is called McElmo (Chaco-McElmo), characterized by large sandstone blocks and some tubular slabs.Some 800 meters north-east from Tsin Kletsin there is Weritos Dam.Its alleged role was to retain the storm water runoff in a reservoir that archaeologists Lagasse, Gillespie and Eggert suggest provided Tsin Kletsin with all of its domestic water.