Which river is a tributary of the Mississippi?
Missouri River
Columbia River
Rio Grande
Potomac River
Missouri is the longest tributary of the Mississippi River, it constitutes to 40% of its watershed. However, it is not the largest tributary by volume - more water is brought by the Ohio River.
reach: rather globalgeographyMississippiNorth AmericariversUnited States
Answers by country
Missouri River
Columbia River
Rio Grande
Potomac River
answers

43

448

92

32

355

23

23

85

268

58

34

7740

56

33

164

26

49

60

50

46