Flows through Alberta, Canada, and plays a role in the Athabasca oil sands and regional ecosystems
Flows through the Southwestern United States, contributing to local water supply and ecosystems
Flows through the Dakotas in the US, playing a role in the region's water supply and environment
A river in Canada, flowing through Alberta and Saskatchewan and supporting local industries and ecosystems
A river in Canada, forming parts of the borders between Ontario and Quebec and important for trade
A river system in Mexico, playing a role in the country's geography and ecosystems
The upper course of the Mississippi River, flowing through several states and influencing the region
