Zarqa River

The Zarqa River (Arabic: نهر الزرقاء‎, Hebrew: נחל יבוק, Yabok river) is the second largest tributary of the lower Jordan River, after the Yarmouk River. It is the third largest river in the region by annual discharge, and its watershed encompasses the most densely populated areas east of the Jordan River. It rises in springs near Amman, and flows through a deep and broad valley (which is identified with the biblical Jabbok River) into the Jordan, at an elevation 1,090 meters (3,580 ft) lower. The river is heavily polluted and its restoration is one of the top priorities for the Jordanian Ministry of the Environment.

Geologically, the Zarqa river is about 30 million years old. At the river's origin is 'Ain Ghazal, a major archaeological site that dates back to the Neolithic period. Archeological finds along the course of the river indicate the area was rich in flora and fauna in the past. The Zarqa river is well known for its amber deposits that date back to the Hauterivian of the lower Cretaceous (135 m.y.). A remarkable flora and fauna was reported from this amber reflecting a tropical paleoenvironmental prevailing conditions during the time of resin deposition (Kaddumi, 2005; 2007).