What is another word for most upstream?
Pronunciation: [mˈə͡ʊst ʌpstɹˈiːm] (IPA) 
When it comes to describing the position of an object or location in a river system, "most upstream" is a common phrase. However, there are several synonyms that can be used to express the same idea. For example, "headwaters" refers to the source of a river, which is the point farthest upstream. "Uppermost" can also be used to indicate the highest point in a river system. "Beginning" or "origin" can also be used to refer to the most upstream point of a river. Additionally, "upstreammost" is a less common but still valid synonym for "most upstream." When writing about river systems, it's important to use descriptive language and choose words that convey the intended meaning accurately.
