We continued to work today on defining the various internal stone features that appear to be resting on the floor of this room. This has entailed a great deal of rock cleaning and removal. In the southeast sector, a rectilinear feature appears to have been built atop the bedrock outcrop first exposed last year. The rocks that make up this feature are smallish but the alignments are unmistakable (after removing a great deal of fallen rocks). Black burnt earth within this probable feature points to possible burning episodes. A smaller rectangular area is demarcated adjacent to the former, just to the north. Then there is a line of stones that runs parallel to the southeast wall, though not across its entire extent. Yet another series of linear alignments set apart the eastern quadrant of the room (also, it appears, upon a bedrock base). And today, in the course of excavating locus 35, we identified what appears to be another linear alignment that runs parallel to the stones of locus 31 (now locus 41). Locus 38 covers the area of what was formerly locus 35, not including the new area of locus 41. And locus 39 covers the area of what was formerly locus 37, not including what is now locus 40. All in all, the interior of this room is quite a bit more complex than other rooms excavated thus far in Precinct A because of the unusual abundance of stone alignments. Also, the question of the doorway has yet to be resolved.