During the surveys, a Castiglioni Brothers helium balloon was employed to take photographs from various altitudes. Thanks to this technique, 800 slides and black and white photographs were taken in five days.
Ancient Indus civilization raw materials related objects and locations.
The cores are of a type typical for Harappan culture, both conical and elongated. The blades have been struck off with the pressure technique. This involves pressing the surface of a flint or flake with a soft-pointed instrument.
Small workshops are represented by small scattered groupings of flint, including flakes, blades and sometimes cores.
The presence of Harappan flint workshops in the hills close to Rohri had been discovered by Bridget Allchin in 1975. The impressive mining activity in the hills is particularly well-represented near Shadee Shaheed.
Around the quarries, thousands of flint artefacts were found lying on the surface. This shows that peliminary chipping of the artefacts took place on top of the mesas, or flat limestone terraces.
The first Harappan flint quarries here were discovered during a preliminary survey carried out in January 1986 by the writer and Prof. M.
The Rohri Hills as they appear along the western fringe of the plateau, facing the fertile Indus Valley, where most of the Harappan flint quarries and workshops have been discovered.
The Rohri Hills as they appear along the western fringe of the plateau, facing the fertile Indus Valley, where most of thhe Harappan flint quarries and workshops have been discovered. (The shadow is from the helicopter.)