Ésera
From Wikipedia, the free encyclopedia
The Ésera (Spanish: [ˈeseɾa]) is a tributary of the Cinca in the High Aragon.[1][2][3] It is part of the valley of the Ebro and its drainage basin. Its etymology is Celtic and it is cognate with several European rivers: Isar, Jizera, Isère, Isel, IJssel, and Eisack.
