Hole in bedrock on west side of C3. Before refilled to level at east ... AMS Horizontal (normal)
Drain 1 looking northwest. Indicated with (x) is the conglomerate block and Well 7 at foreground ... AMS Horizontal (normal)
West Wall Poros Building looking south. Terracotta Drain A in lower foreground ... AMS Horizontal (normal)
Looking west, showing Area B4 and B5. Indicated are Drain B and Wall A=North Wall of B4 ... AMS Horizontal (normal)