Group A is the largest group west of the site core. The group includes a tall pyramid, severely damaged by looters' pits, with one in the summit and one each on the north, east, south and west sides. IDAEH has since refilled all five pits. Six large rectangular palace-type structures are situated to the west of this pyramid, measuring up to high. A plaza is formed in Group A by the pyramid on the east side and a palace on the west side, accessed from the plaza via a stairway. Southeast of the palace is another plaza surrounded on three sides by palace-type structures.