The Erymanthos is a river in the western part of the Peloponnese

Peloponnese

The Peloponnese, Peloponnesos or Peloponnesus , is a large peninsula , located in a region of southern Greece, forming the part of the country south of the Gulf of Corinth...

 in Greece

Greece

Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

, the river flows in the Achaia, Arcadia

Arcadia

Arcadia is one of the regional units of Greece. It is part of the administrative region of Peloponnese. It is situated in the central and eastern part of the Peloponnese peninsula. It takes its name from the mythological character Arcas. In Greek mythology, it was the home of the god Pan...

 and partly in the Ilia prefectures. Historically, the river flowed entirely in the region of Arcadia until after the Greek War of Independence

Greek War of Independence

The Greek War of Independence, also known as the Greek Revolution was a successful war of independence waged by the Greek revolutionaries between...

.

Geography

The river begins in the southeastern part of the Mount Erymanthos

Mount Erymanthos

Mount Erymanthos is a dense mountain range south of Patras in the middle of Achaia prefecture. The mountains is also called Olonos . Historically it was in northwestern Arcadia and was the second tallest in the historic Arcadia, the northern portion belonged to the historic Achaea...

 range in a rocky landscape with several streams. The river flows into an area rich in pine trees and passes into several villages including Kertezi

Kertezi

Kertezi is a small village in the municipality of Kalavryta, Achaea, Greece. It is built on the slopes of Mount Chelmos which are covered with pines, fir trees and rigani or Oregano. Many residents of the post-war generation dispersed to larger Greek cities or other countries. However many return...

 and Tripotamo

Tripotamo

Tripotamo may refer to several villages in Greece:*Tripotamo, Arcadia, a village in Arcadia*Tripotamo, Evrytania, a village in Evrytania...

. It has several tributaries with streams up to Lampeia

Lampeia

Lampeia is a village and a former municipality in Elis, West Greece, Greece. Since the 2011 local government reform it is part of the municipality Archaia Olympia, of which it is a municipal unit. The village is also known as Divri. Its population is presently around 1,000. Lampeia is in a valley...

, its length is as far as 15 km. There is a small gorge nearby and are partly forested. It enters a hilly setting rich in dense forest and for 35 km shares the prefectural boundary with Ilia. It flows underneath a one-lane bridge that is the GR-74

Greek National Road 74

Greek National Road 74 is a highway linking Pyrgos, Olympia, Tripoli and GR-7/E65. The west to east highway runs in the western and the central part of the Peloponnese. The highway begins in Pyrgos and into the hills and Olympia and used to ran through narrow roads which now bypasses Pyrgos and...

 (Tripoli

Tripoli, Greece

Tripoli is a city of about 25,000 inhabitants in the central part of the Peloponnese, in Greece. It is the capital of the prefecture of Arcadia and the centre of the municipality of Tripolis, pop...

 - Olympia

Olympia, Greece

Olympia , a sanctuary of ancient Greece in Elis, is known for having been the site of the Olympic Games in classical times, comparable in importance to the Pythian Games held in Delphi. Both games were held every Olympiad , the Olympic Games dating back possibly further than 776 BC...

 - Pyrgos, the bridge is with arch support, the section will become the new highway, a new better two-lane bridge will be added north of the bank. The river empties into the Alfeios 5 km west of the Ladon

Ladon

Ladon may refer to:*Ladon , one of the dragons in Greek mythology*Ladon in Arcadia, Greece*Ladon, Loiret, a commune in the Loiret département of France*Ladon, the dragon god in the video game Breath of Fire III...

 confluence. An old highway used before the mid 2nd millennium

2nd millennium

File:2nd millennium montage.png|From left, clockwise: In 1492, Christopher Columbus; The American Revolution; The French Revolution; The Atomic Bomb from World War II; An alternate source of light, the Light Bulb; For the first time, a human being sets foot on the moon in 1969 during the Apollo 11...

 that connected Patras

Patras

Patras , ) is Greece's third largest urban area and the regional capital of West Greece, located in northern Peloponnese, 215 kilometers west of Athens...

 and Megalopoli along with Messene

Messene

Messene , officially Ancient Messene, is a Local Community of the Municipal Unit , Ithomi, of the municipality of Messini within the Regional Unit of Messenia in the Region of Peloponnēsos, one of 7 Regions into which the Hellenic Republic has been divided by the Kallikratis...

ran north of the river and had a bridge. It only has a few bridges and they are north of Tripotamo.