1. The source streams or small rivers that form the beginning of a larger river.
Usage: Usually used in plural form.; Refers to the upper tributaries of a river system.

Examples

• The headwaters of the Amazon River are located high in the Andes Mountains.
• Hikers explored the pristine headwaters of the mountain stream.
• The headwaters of the Mississippi River begin in Minnesota.
• Conservation efforts focus on protecting the headwaters from pollution.
• Small springs feed into the headwaters of the creek.
• The headwaters region is home to rare species of trout.