Overview of Trench 57 excavations that were continued in 2001 to reveal massive baked brick wall voids and additional baked brick drains. Looking West.
Greenish clay layers were found in a deep depression in the center of the HARP-excavated platform. One theory that is being investigated is that the platform and the central pit were used for production of indigo dye (Trench 43).
Many of the buildings at Mohenjo-daro had two or more stories. Water from the roof and upper storey bathrooms was carried through enclosed terracotta pipes or open chutes that emptied out onto the street, such as this one on a house in DK-G Area.
In Trench 57 West, excavations in 2001 revealed a large paving of backed bricks that may have been part of a courtyard or room originally bordered by massive baked brick walls.
Structures in this part of Harappa were sometimes made of a combination of mud-bricks and baked bricks, sometimes mixed in the same wall as seen here in the case of both the southern part of the western wall and part of the northernmost wall.