How is the concept of a river's "source" defined scientifically?

Muttel, Sage Denali, "Detrital Zircon Petrochronology for Sedimentary Provenance Analysis: Source to Sink of the Mississippi/Missouri River Drainage Basin" ( ... ... Missouri River wellfield and an underground pipeline to Lincoln. March 7 ... Mayor's Water Source Advisory Council (JPG, 306KB) Mayor's Water Source Advisory ... Louis; the City has been using the same source ... Louis' two water purification plants draw water primarily from the Missouri river, and they produce 150 million ... Travels to the Source of the Missouri River: And Across the American Continent to the Pacific Ocean 1804, 1805, and 1806 (Cambridge Library Collection - North ... In 2008, 70 miles of Missouri's streams were affected by point source pollution, and 21,750 lake acres and many streams were impaired by mercury. When ... Sapphires from the Upper Missouri River gravel bars were first found as heavy crystalline stones accumulated in the sluice boxes of gold miners. They were not ... Source: The River Town Podcast is a collaboration between The New Territory Magazine and KBIA radio. Date: May 3, 2024. Description: This is one episode of a ... OWP 2.0 WWA Modal instruction. Sender. Sent. NWS Web Master. 01/11/2021, 02:04 PM PST. Source. Ok. Official Forecast; National Water Model Guidance. Upstream ... Dec 7, 2022 ... 182 votes, 40 comments. 30K subscribers in the canoecamping community. The Subreddit for those who love to Paddle and Camp by the water. The source lake and its intake structure, while necessary for the storage of excess flows from the Missouri River, will negatively impact terrestrial wildlife.