Jugurtha Tableland

The Jugurtha Tableland is a large mesa near the town of Kalaat es Senam, Tunisia, which stands almost 600 metres above the Ez-Zghalma plain. 1,500 m long and 500 m wide, it covers a total area of nearly 80 hectares.The Tableland is a geologic feature known as an inverted relief. Millions of years ago, the hard limestone top of the mesa was actually the bottom of a valley. Over the years, the softer surrounding hills were worn away by erosion, leaving the Tableland – and former low point – as the highest point on a plain. Local drinking water comes from the Ain Senan spring at the edge of the Jugurtha Tableland.

Source: Wikipedia