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Trionto valley Longubucco.jpg
The Trionto between Acri and Longobucco
Country Italy
Region Calabria
Cities Longobucco, Cropalati, Crosia
Physical characteristics
  location Sila Mountains
Mouth Gulf of Taranto
Pantano Martucci
39°37′29″N16°45′25″E / 39.62472°N 16.75694°E / 39.62472; 16.75694 Coordinates: 39°37′29″N16°45′25″E / 39.62472°N 16.75694°E / 39.62472; 16.75694
0 m (0 ft)
Length40 km (25 mi)
Basin size288 km2 (111 sq mi)
  average4.4 m3/s (160 cu ft/s)

The Trionto is a river in the Calabria region of southern Italy. It was known in ancient times as the Traeis. [1] It rises in the Sila Mountains and initially flows to the east but gradually changes direction to the north. It drains into the Gulf of Taranto at Pantano Martucci after a course of about 40 kilometers. Its main tributaries are the La Manna, Macrocioli, Ortiano and Laurenzana. It has a drainage basin of 288 square kilometres (111 sq mi). [2] Along its course it passes Longobucco, Cropalati and Crosia. The river is mainly seasonal. The ancient Greek city Sybaris on the Traeis was located near the course of the river, but its location has not been found.

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  1. Richard Talbert, Barrington Atlas of the Greek and Roman World , ( ISBN   0-691-03169-X), Map 46.
  2. Caratteristiche bacino e sottobacini. Trionto