Known throughout history as Jader, Salon, Rika, Solinčica and Jadro, it is a typical karst river with a short course. Jadro is extremely rich in clean and high-quality water. Its watercourse is formed by the combination of the water forces of the underground and the surface watershed.
Its importance for flora and fauna is exceptional, but it does not stop there. From ancient times until today, it is the main water supplier of the cities of Solin, Split, Trogir and many other surrounding settlements, and for centuries it has supplied the water to the fertile land of the Solin fields. It was also the prime mover of all the mill wheels of the numerous mills along the stream. Since 1908, it has been the main force behind the hydroelectric power plants that are built in the upper reaches. The Jadro was also important for the medieval and ancient Croatian history. In this area of the “Croatian Jordan”, as it is sometimes also called, Croats turned to0 Christianity and built their churches and monasteries, the coronation basilicas of their national rulers and royal tombs. Recent times have witnessed the significant development of the cement industry along the Jadro, and its gradual retreat. It left wounds in the landscape, but also new ideas and initiatives for the protection and sustainable use of this unique space.