Its territory was bounded on the north by that of Psophis, on the south by that of Heraea, on the west by the Eleia and Tisatis, and on the east by that of Cleitor, Tripolis, and Theisoa.
[2] In 222 BCE, it was taken by Antigonus Doson, in the war against Cleomenes III, and it is also mentioned in the campaigns of Philip V of Macedon.
[12] The ruins of Thelpusa stand upon the slope of a considerable hill near the village of Vánena (or Vanaina), north of Toubitsi.
There were likewise the remains of a Roman building, about 12 yards (metres) long and 6 wide, with the ruins of an arched roof.
Below Vánena there stands upon the right bank of the Ladon the ruined church of St. Athanasius the Miraculous, where William Martin Leake found the remains of several columns.
Pausanias, in describing the route from Psophis to Thelpusa, after mentioning the boundaries between the territories of the two states, first crosses the river Arsen, and then, at the distance of 25 stadia, arrives at the ruins of a village Caus and a temple of Asclepius Causius, erected upon the roadside.