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American Frontier
–Fur trade
link fur trappers, Platte Valley
beaver and river otter should be linked here rather than later. (T/C//WP:CHICAGO/WP:FOUR)  

–Settlers and pioneers
What does this mean: the western approach of the First Transcontinental Railroad was a ferry ride across the Missouri
Link Independence and clarify its relation to the river.
naturally and ""Had to be"" in para 4 sound POV (T/C//WP:CHICAGO/WP:FOUR)  "