Cross-sections inside (top) and outside (bottom) of perimeter wall . The wall itself, being of mud-brick, was heavily eroded, sometimes to a lower elevation than the adjoining more densely packed street debris.
Ancient Indus walls.
View of excavations on the west side of Trench 54 where brick robbers had removed several massive Harappan Period baked brick walls (c.
In 2001, excavation of perimeter wall  was extended to the Northwest. Here the surface of the wall is being cleared and the bricks outlined. Note the excavation in the foreground left where there was no mud-brick.
View of the preserved surface of perimeter wall  excavated in 2001 looking Southeast toward the area excavated from 1993 to1997.
Lateral view of remnants of brick walls and massive mud brick platforms of the Harappan and Early Harappan (Kot Diji) Periods on the west side of Trench 54. Looking North.
Plan view of the portion of perimeter wall  excavated in 2001. The pattern of the bricks suggests a complicated series of additions to the inside of the structure that are not yet well understood.
North-South section plan of Harappan (Period 3) and Early Harappan (Period 2) wall remnants and mud brick platforms on the west side of Trench 54.