Borders
A longitudinal, narrow gorge is formed within a closed circle of mountains. The gorge is defined in the west and north by the peaks of the vast plateau of Politsia, in the east by the peaks of Katara and Zygos and in the south by the mountain Peristeri (or Lakmos).Water streams
Several streams from the surrounding mountain slopes flow into the basin formed by these mountains. Among them the largest ones are the river of Zygos, the river of Rona and the river of Lessintza (Leʃindzə) or Lentza.Confluence of rivers
In the location Tria Chania the flow of the Metsovitikos river turns south and enters a second, much wider valley which it crosses along the slope of mountain Peristeri (or Lakmos) down to the area of Baltouma. At this point it merges with the aquatic arm formed by the confluence of rivers Vardas and Zagoritikos which spring in the Eastern and CentralDipotamos
This dual spring of the Arachthos river, known since Antiquity, gave Arachthos its popular name, Dipotamos (Διπόταμος, "two-rivers"). The valley of the Metsovitikos river was the main passage between Epirus, on one hand, andSources
*Th. Dasoulas, Agrotikes koinonies tou oreinou chorou kata tin othomaniki periodo: o georgikos kosmos tis “Choras Metzovou” (18os -19os ai.) grarian society in highland areas during the Ottoman period: farmer's population of the land of Metzovo (18th-19th centuries) publ. EADD (National Archive of PhD Theses, http://hdl.handle.net/10442/hedi/17726), 2009, pp. 121–125, 162-192. *V. Nitsiakos, Nomos Ioanninon: Synchroni politismiki geographia refecture of Ioannina: Modern Cultural geography with the cooperation of M. Arapoglou and K. Karanatsi, Prefecture of Ioannina, Ioannina 1998, pp. 417–466. *K. Thesprotos-A. Psalidas, Geographia Albanias kai Epirou eography of Albania and Epiros published by the Society for Epirote Studies. (EHM), Ioannina 1964, p. 56. *F. Dasoulas, “Pindos, oi geografikes kai istorikes diastaseis enos onomatos” indos, the geographical and historic dimensions of a name Epirotiko Imerologio 21 (1912), pp. 13–15. *H. Holland, Taxidi sti Makedonia kai Thessalia (1812-1813) ourney in Macedonia and Thessaly transl. G. Karavitis, publ. Afoi Tolidi, Athina 1989, pp. 39–45. *Strabo, Geographika eography B. Z (7, 6), publ. Papyros, p. 930. Rivers of Greece Rivers of Epirus (region) Landforms of Ioannina (regional unit)