Crossword Genius

Rising in the Rockies, the longest river in North America (8)

Ross

I believe the answer is:

missouri

(Other definitions for missouri that I've seen before include "US river - state" , "Midwestern US state" , "State of central US" , "Biggest tributary of the Mississippi" , "US state, capital Jefferson City" .)

I've seen this clue in The Guardian.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.