Gallatin River, Montana, United States (Google Maps ⧉, OpenStreetMap ⧉)

Referenced In

"We were therefore induced to discontinue the name of Missouri, and gave to the southwest branch the name of Jefferson in honour of the president of the United States, and called the middle branch Madison, after James Madison secretary of state. These two, as well as Gallatin river, run with great velocity and throw out large bodies of water."

"CHAPTER XVI. The party ... reach Gallatin and Jefferson rivers, of which a description is given."

"…we will then attempt the passage by ascending the main southwest branch of Lewis’s river through the country of the Shoshonees, over to Madison or Gallatin rivers."

"…captain Clarke divides his party, one detachment of which was to descend the river—they reach Gallatin and Jefferson rivers, of which a description is given…"