What is another word for upper reach?
Pronunciation: [ˌʌpə ɹˈiːt͡ʃ] (IPA) 
The term "upper reach" refers to the upper part of a river or stream where the water flows more vigorously. There are various synonyms for the term "upper reach" that are commonly used in different contexts. Some of these synonyms include upper watershed, upper course, upper section, and upper stretch. Additionally, the term "headwaters" can also be used to describe the source of the river or stream. These different synonyms can be used interchangeably when referring to the part of the river or stream that is located at the uppermost part, often closer to the mountains or hills where the water originates.
