Between Bastia and Solenzara, on its eastern coast also called the Eastern Plain, Corsica has a stretch of sandy coastline which contrasts with the mainly mountainous morphology of the island. This area is made up of three large sub-areas : the plain of Bastia formed by the alluvial deposits of the Golo river, the foothills between Fium’Alto and Alésani and the plain of Aléria from southern Alésani to Travo. This Eastern Plain has a succession of depressions occupied by ponds separated from the sea by sandy ridges.