Dereium or Dereion ( Ancient Greek: Δέρειον), also known as Dera (Δέρα) [1] and Derrhium or Derrhion (Δέρριον), [2] was a town of ancient Laconia. Pausanias writes that it was on Taygetus not far from Lapithaeum, and 20 stadia from Harpleia. Dereium possessed an open image of Artemis Dereatis, and a spring called Anonus. [3]
Its site is unlocated. [4]