Orba | |
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The Orba near Molare
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Country | Italy |
Physical characteristics | |
Main source |
Monte Reixa 1,183 m (3,881 ft) |
River mouth | Bormida |
Length | 68.4 km (42.5 mi) |
Discharge |
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Basin features | |
Basin size | 776.4 km2 (299.8 sq mi) |
Tributaries |
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The Orba is a torrent (Italian: torrente — a stream whose flow shows a very marked seasonal variation) of northern Italy.
Orba is a toponym which is quite frequent in Europe, especially in Italy, France and Spain in a variety of different forms and spelling.
The name has a Celtic origin related with Celtic mythology and as toponym is often associated with rivers whose sand were found to be rich in gold.
Orba c. 70 km course runs northwards through Piedmont from its springs in the Apennines (from the northern slopes of Monte Reixa) to its confluence with the Bormida, a right tributary of the Po. The Orba flows from a mountain region, where there are attractive villages such as Tiglieto, Molare and then it comes to Monferrato's hills.
Ovada is the biggest town in Orba's valley, and it has a central role among all other villages on top of hills: Rocca Grimalda, Tagliolo Monferrato, Cremolino, Silvano d'Orba, Carpeneto, Castelletto d'Orba, Predosa are only some of villages which were built around their own castles on top of rocky hills close to the river, surrounded by vineyard and woods.