Orneau
| Orneau Ôrnô | |
|---|---|
 The Orneau flowing through Mazy | |
| Location | |
| Country | Belgium |
| Physical characteristics | |
| Source | |
| • location | près de Meux |
| Mouth | |
• location | Jemeppe-sur-Sambre |
• coordinates | 50°26′58″N 4°40′45″E / 50.44942°N 4.67905°E |
| Basin features | |
| Progression | Sambre |
| River system | Meuse |
The Orneau (French pronunciation: [ɔʁno]; Walloon: Ôrnô) is a river in Belgium. It is a tributary of the Sambre and therefore sub-tributary of the Meuse.
The Orneau flows from north to south, through the province of Namur, and after a journey of about 25 kilometres (16 mi), it flows into the Sambre at Jemeppe-sur-Sambre.
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