View of excavations on the west side of Trench 54 where brick robbers had removed several massive Harappan Period baked brick walls (c. 2600-1900 BC, Harappa Period 3). At the bottom of the brick robber trench are remains of the Harappan walls and also of earlier mud brick structures of the Early Harappan Period (c. 2800-2600 BC, Harappa Period 2). Looking South.