Rohri Hills

In 1975-6, the Cambridge Archaeological Expedition made a preliminary survey of the

Paleolithic sites

in the

Rohri Hills

. According to their findings, the Rohri Hills were a source of chart for the manufacture of the

parallel-sided

blades used by the

Harappan

culture of 2300 -

1750 BC

.

The most clearly differentiated Paleolithic site in the Rohri Hills was at their southern end, near the village of Chancha Baloch and only four kilometers from the

pre-Harappan

settlement of

Kot Diji

. Spread over an area of about 5,000 square meters, on a largely sand- free area between the dunes, are found Middle and Upper Paleolithic artifacts and factory debris.

An extensive series of working floors were also found close to a hamlet known as Nawab Punjabi. The discovery of factory sites representing all phases of the