South Nation Watershed

• Drainage Area: 3900 km2
• General Direction Flow: Northeast
• Headwaters: North of Brockville
• Confluence: The Ottawa River near the village of Plantagenet
• Towns and Cities: 15 municipalities
• Approximate Population:
• Total Length:175km in length
• Elevation: 85 metres
• Predominant Land Cover:
• Predominant Land Use: 57% agriculture
• Rivers and Tributaries: South Nation, Bear Brook, Scotch, Castor and Payne rivers.
• Original Settlement:
• Percentage Water Source: Roughly 60% of the water in the South Nation River is fed by groundwater sources
• Other: High sediment loads caused by stream bank erosion give the water a natural brownish colour.