Layer with dense concentration of tile, pottery and bone east of and abutting wall 4006 in the second room from the north. Due to the density of large fragments of bone, pottery, tile and 3 loom weights, this may be the result of a dumping action or, more likely, natural accumulation of metal. Near the wall 4006. The concentration may have continued to the north where the channel (4002) cuts this corner of the room. Southern extension is uncertain, but may have been truncated.