The source of the Eurotas River is a surface spring called Piges Evrota (Πηγές Ευρώτα, Eurotas Springs) located near the village of Skortsinos, Arcadia, by the side of the road ascending from Kyparissi. The spring is an outlet of an aquifer located in the adjacent limestone ridge at a locale called Kephalari. The ridge, a karst, is not part of the Taygetus Massif, but, like the other mountains of Arcadia, is a nappe raised by the compressional forces on the Hellenic Plate by the subduction of Africa. The spring is also called Logaras Spring.