Southern terracing wall. Seems to extend eastward to connect with wall 5007. Some blocks were heavily disturbed, either leaning out of position or found loose within fill 5110 to the south of wall 5006. Combined with the orange tufo walls headers (5125, 5123, 5136) the arrangement would've given the monumental facade a checkerboard appearance. Wall 5006/5007 was constructed against a linear cut in the bedrock (5117, 5131, 5132, 5151).