headwaters
noun [ + sing/plural verb ] uk/ˈhed.wɔː.təz/ us/ˈhed.wɑː.t̬ɚz/
（河流的）上游源头
streams that flow into a larger river close to where it starts
In 1866, Livingstone began his search for the headwaters of the Nile River. 1866年，利文斯通开始寻找尼罗河的源头。
The Pecos River stretches hundreds of miles south from its headwaters in the mountains of New Mexico. 佩科斯河起源于新墨西哥山脉，之后向南绵延数百英里。
- More examples
- The waterway runs from the Missouri River headwaters to the Pacific Ocean.
- Apache trout thrive in cooler, smaller headwaters of streams.
- The Green Swamp is the headwaters for five major river systems.