Dereium

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]
References

Stephanus of Byzantium. Ethnica. s.v.
Smith, William, ed. (1854–1857). "Derrhium". Dictionary of Greek and Roman Geography. London: John Murray.
Pausanias. Description of Greece. 3.20.7.
Richard Talbert, ed. (2000). Barrington Atlas of the Greek and Roman World. Princeton University Press. p. 58, and directory notes accompanying.