Greed (flow)

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greed
Waterfall in the upper reaches of the Gier

Waterfall in the upper reaches of the Gier

Data
Water code FR :  V31-0400
location France , Auvergne-Rhône-Alpes region
River system Rhône
Drain over Rhône  → Mediterranean
source in the municipality of La Valla-en-Gier
45 ° 23 ′ 14 ″  N , 4 ° 34 ′ 28 ″  E
Source height approx.  1310  m
muzzle at Givors in the Rhône coordinates: 45 ° 35 ′ 12 ″  N , 4 ° 46 ′ 1 ″  E 45 ° 35 ′ 12 ″  N , 4 ° 46 ′ 1 ″  E
Mouth height approx.  150  m
Height difference approx. 1160 m
Bottom slope approx. 29 ‰
length 40 km
Catchment area 417 km²
Left tributaries Bozançon
Right tributaries Dorlay , Couzon
Reservoirs flowed through Barrage du Piney, Barrage de Soulages
Medium-sized cities Saint-Chamond
Small towns La Grand-Croix , Rive-de-Gier , Givors

The greed is a river in the French region of Auvergne Rhône-Alpes . It rises on Mont Pilat , in the middle of the Pilat Regional Nature Park , in the municipality of La Valla-en-Gier . Its source is located on the north flank of the Crêt de la Perdrix , at an altitude of around 1335 meters. It first drains to the north, then swings to the northeast and after 40 kilometers at Givors it reaches the river Rhône , into which it joins as a right tributary. On his way he crosses the Loire and Rhône departments . The A47 motorway , which connects Saint-Étienne with the A7 motorway, follows its valley.

The Latin name of the river was Jaresis , from which on the one hand Gier arose, on the other hand the name suffix Jarez for the towns of Sainte-Croix-en-Jarez , Saint-Paul-en-Jarez and Saint-Romain-en-Jarez in the Gier Valley derives.

Technology history

The Romans carried the waters of Gier over an 85 km long aqueduct to Lugdunum ( Lyon ).

The engineer Marc Seguin built the railway line Saint-Étienne-Lyon through the valley of Gier from 1826 to 1832 and began the first railway operation with steam locomotives on the European continent on the section between Givors and Rive-de-Gier in 1831.

Places on the river

See also

Web links

Commons : Greed  - collection of images, videos and audio files
Commons : Roman Aqueduct  - Collection of Images, Videos and Audio Files

Individual evidence

  1. ↑ Source geoportail.fr (1: 32,000)
  2. ↑ estuary geoportail.fr (1: 16,000)
  3. ↑ a b c The information on the river length is based on the information on greed at SANDRE (French), accessed on March 2, 2009, rounded to full kilometers.