"Mound F is the northernmost mound on the site, and measures roughly 780' from north to south by 970', from east to west. At the time of General Cunningham’s visit the height of this mound was 2.5 to 30 feet above the surrounding land, and it is still about the same."
Harappa Mound F (the "Granary") related images.
Plan view of the so-called "granary" or "parallel-wall structure" on Mound F at Harappa indicating areas of HARP excavations conducted in 1997 and 1999. Note that the structural remains surrounding the "granary" are, for the most part, later than the
"The mound was covered with potsherds and brick bats, but no brick foundations were visible anywhere that might have served as a starting point." - Daya Ram Sahni, Annual Progress Report of the Archaeological Survey [of India], Hindu and Buddhist
Overview of the "granary" area looking towards the southeast. The walls have been partly restored for conservation purposes by the Department of Archaeology and Museums, Government of Pakistan.
Excavations in 1997 at the southeast corner of the "granary" area were undertaken to recover a full sequence of pottery, architectural features, and inscribed objects.
In the upper levels of , a small baked brick structure with sump pots was found. This structure, possibly a latrine, is on the northern margin of a major east-west street that ran along the southern edge of the "granary" area.
A massive baked brick revetment wall  surrounds the solid mud-brick foundation platform  of the "granary" that measures approximately 51 meters north-south and 41 meters east-west.