Dead Sea are small perennial springs under and around the Dead Sea, forming pools and quicksand pits along the edges. There are no outlet streams. The Mujib River, biblical Arnon, is one of the larger water sources of the Dead Sea other than the Jordan. The Wadi Mujib valley, 420 m below the sea level in the southern part of the Jordan valley, is a biosphere reserve, with an area of . Other more substantial sources are Wadi Darajeh (Arabic)/Nahal Dragot (Hebrew), and Nahal Arugot. Wadi Hasa (biblical Zered) is another wadi flowing into the Dead Sea. Rainfall is scarcely per year
Dead Sea lake capable of supporting marine life. A similar prophecy is stated in , which says that "living waters will go out from Jerusalem, half of them to the eastern sea [likely the Dead Sea] and half to the western sea [the Mediterranean]." Aristotle wrote about the remarkable waters. The Nabateans and others discovered the value of the globs of natural asphalt that constantly floated to the surface where they could be harvested with nets. The Egyptians were steady customers, as they used asphalt in the embalming process that created mummies. The Ancient Romans knew the Dead Sea as ""Palus Asphaltites""