This drain cuts through the edge of the so-called granary. If the entire drain were constructed along with the Great Bath, this feature would indicate that the original "granary" was built before the great bath.
Standing on the edge of the mud brick drum of the Buddhist Stupa, one looks south to L Area. The courtyard of the stupa has cells of the associated monastery, and below these are Indus buildings.
Some buildings in L area are constructed on top of a massive mud brick platform that can be seen here as grey-olive mud brick below the eroding red fired bricks.
The pillared hall was approximately 27.5 meters square (90 feet square) with twenty square brick pillars arranged in four rows, only two of which are still preserved.
Close-up view of the pillared hall, which may have been a hall of assembly with paved walkways and places for people to sit in ordered rows along each aisle between massive brick pillars.
This large drain was partly covered along its length with large flat blocks made out of limestone from the Rohri hills, which are located to the north and on the other side of the Indus River.