Ancient Indus walls.

City Wall

The curving line of the mud brick city wall at the eastern edge of Mound E rose high above the level of an ancient street that followed the exterior of the wall.

Trench 11 excavations

The Trench 11 area showing the perimeter wall (on the left), the curtain wall, and the Period 3C drain that cut deeply into the Period 3B deposits (see the labeled plan in 72). The sediments outside of the perimeter wall are hard packed ashy debris