Once a thriving river valley, the Cholistan Desert now hides ancient secrets beneath sand

Once a thriving river valley, the Cholistan Desert now hides ancient secrets beneath sand
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In short: Known locally as Rohi, the Cholistan Desert in Pakistan is far more than a barren wasteland. While today it is an arid landscape of shifting dunes and extreme heat, it was once a vital artery of the Indus Valley Civilization, supported by the now-dry Hakra River.

The Cholistan Desert spans 25,800 square kilometers within Pakistan’s Bahawalpur Division. Geologically formed during the Pleistocene, it is divided into Greater and Lesser Cholistan by the ancient, dry bed of the Hakra River. This river was once fed by the Sutlej and Yamuna, supporting a dense network of urban settlements between 4000 BCE and 600 BCE. Archaeological surveys have identified over 400 Harappan sites along this former watercourse, including the significant urban center of Ganweriwal, suggesting the region was once a highly productive heartland of the Indus Valley Civilization.

Today, the environment is defined by harsh aridity. Summer temperatures frequently exceed 46 °C, and the region suffers from chronic water scarcity, forcing nomadic populations to rely on seasonal natural pools called Toba or man-made reservoirs known as Kund. Subsoil water is typically brackish and unsuitable for most agriculture. Despite these challenges, the desert supports a population estimated at 229,071 as of 2015. The local economy is almost entirely dependent on livestock, with an estimated 1.6 million animals, including camels, sheep, and cattle, which provide the raw materials for traditional cottage industries like carpet weaving, leatherwork, and intricate embroidery.

The region’s history is marked by a medieval shift toward trade, which necessitated the construction of a dense network of defensive forts, such as the well-preserved Derawar Fort. These structures, along with the desert’s unique cultural crafts—ranging from fine pottery to delicate Ajrak textile printing—reflect a legacy of artistic development that flourished during the Mughal era. While the desert faces ongoing threats from desertification and the endangerment of local wildlife like the Houbara bustard and Chinkara antelope, it remains a site of cultural resilience. Modern events, such as the annual Cholistan Desert Jeep Rally, now draw attention to this landscape, blending the region's ancient history with contemporary efforts to support local livelihoods.

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