Church of Chaponost
|Intercommunality||Communauté de communes de la Vallée du Garon|
|• Mayor (2008–2014)||Pierre Menard|
|Area1||16.32 km2 (6.30 sq mi)|
|• Density||500/km2 (1,300/sq mi)|
|INSEE/Postal code||69043 / 69630|
|Elevation||180–336 m (591–1,102 ft)
(avg. 325 m or 1,066 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km² (0.386 sq mi or 247 acres) and river estuaries.2 Population without double counting: residents of multiple communes (e.g., students and military personnel) only counted once.
It is known for its Roman aqueducts.
The Roman aqueduct of the Gier, estimated to be 75 km long, was built under Hadrian's reign during the second century CE to enable water supply of the Roman city of Lugdunum (Lyon) from Mont Pilat (source of the river Gier). Arches of the aqueducts (around 92 arches on 550 m) are located on the territory of the commune, at the site of "Le Plat de l'Air".
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