The first human inhabitants were the San people, who left rock engravings believed to be several thousand years old.

Upstream of the dam some rock engravings can be seen.

The appearance of the site varies from one culture to another, but it is often associated with stone arrangements, rock engravings, or other art works.

The reserve has more than 6,000 rock engravings dating back between 5,000 - 40,000 years.

Many different methods are used to create rock engravings.

And lasers are being used to record rock engravings in three dimensions.

These shapes can be found especially in rock engravings of Southern Africa.

Important rock engravings can be found in the Sydney region.

They left a record in the form of rock engravings made over a period of more than 1,000 years.

It is believed that the Berbers were responsible for much of the rock engravings in the area.