Oise (river)

Oise
Boats on the Oise, Charles-François Daubigny, 1865
Location
Countries	France and Belgium
Physical characteristics
Source
• location	Hainaut
• elevation	309 m (1,014 ft)
Mouth
• location	Seine
• coordinates	48°59′12″N 2°4′17″E / 48.98667°N 2.07139°E / 48.98667; 2.07139
Length	341 km (212 mi)
Basin size	17,000 km2 (6,600 sq mi)
Discharge
• average	110 m3/s (3,900 cu ft/s)
Basin features
Progression	Seine→ English Channel

The Oise (/wɑːz/ WAHZ; French: [waz] ^ⓘ) is a river of Belgium and France, flowing for 341 km (212 mi)^[1] from its source in the Belgian province of Hainaut, south of Chimay. It crosses the border with France after about 20 km (12 mi). It flows into the Seine at Conflans-Sainte-Honorine, a north-western suburb of Paris. Its main tributary is the Aisne. It gave its name to the French departments of Oise and Val-d'Oise.