Wadi al-Hasa (), known from the Hebrew Bible as the valley and brook of Zered (), is a wadi in western Jordan. It is located between the Karak and Tafilah governorates. Geography The wadi is very big and long and ends in the Dead Sea at the town of Al-Safi. Its length is approximately , and it contains many historical and modern facilities and farms. At no time during the year does the water stop flowing. There are many springs and other sources that feed it, particularly the part in the governorate of Tafilah. It is longer and wider than Wadi al-Moujib, which is located to the north. The wadi is part of the Dead Sea river basin in Jordan, whose waters feed it and then accumulate in the winter on the south side of the Dead Sea. The area of the wadi's basin is approximately . The wadi's water gathers in the desert wadis and streams whose basin reaches the al-Jafr region, and is then transported to the Jordan Valley and eventually the Dead Sea. Water use The wadi area is intensely used by farmers who use the water for irrigation, mostly for vegetables like tomatoes and melons. In 1999, Jordan built a dam atop the wadi, known as the Al-Tannur Dam. It has a storage capacity of about . The wadi has special significance for walks and for hiking. The route spans about , and is a popular destination for adventure tourists in Jordan for walkers and hikers. A group of hiking clubs have been organized, most of which end at the Jordan Valley, where there are many mineral hot springs, which are said to have many health benefits. Throughout the wadi there are many farms, most of them vegetable farms, above stream of the Al-Tannur Dam. There are also olive trees and clovers. There are fountains and streams that are suitable for drinking which are used by the local residents. There is natural scenery and it contains bodies of water that have formed over time because the stones were carved with water, reaching a depth of more than six meters. The wadi is rich in fish, caught by both residents and visitors. Hebrew Bible Zared (also Zered) is a name used in the Torah for a brook and its valley. It is mentioned briefly in and more extensively in , as the place where the Israelites camp