St. Louis, Missouri (flows into the Middle Mississippi) [1]
Length
1,300 miles (2092.147 km) [3]
Basin size
490,000 km2 (190,000 sq mi)[4]
Discharge
• average
5,796 m3/s (204,700 cu ft/s)[5]
Barge going under the Mississippi River Bridge (La Crosse, Wisconsin)
The Upper Mississippi River is the portion of the Mississippi River upstream of St. Louis, Missouri, United States,[1] at the confluence of its main tributary, the Missouri River.[citation needed]
The UpperMississippiRiver is the portion of the MississippiRiver upstream of St. Louis, Missouri, United States, at the confluence of its main tributary...
The MississippiRiver is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay...
The MississippiRiver System, also referred to as the Western Rivers, is a mostly riverine network of the United States which includes the Mississippi River...
MississippiRiver is the portion of the MississippiRiver downstream of Cairo, Illinois. From the confluence of the Ohio River and UpperMississippi River...
crossings of the UpperMississippiRiver which begins at the MississippiRiver's source and extends to its confluence with the Ohio River at Cairo, Illinois...
merges with the Mississippi Flyway between Missouri and the Gulf of Mexico. In the northern portions of the UpperMississippiRiver, the birds congregate...
flooding. The largest flood ever recorded on the Missouri River and UpperMississippiRiver in terms of discharge. This flood was particularly devastating...
for 2,341 miles (3,767 km) before entering the MississippiRiver north of St. Louis, Missouri. The river drains a sparsely populated, semi-arid watershed...
mapping the UpperMississippiRiver basin during the 1830s. Nicollet led three expeditions in the region between the Mississippi and Missouri Rivers, primarily...
Minnesota has 6,564 natural rivers and streams that cumulatively flow for 69,000 miles (111,000 km). The MississippiRiver begins its journey from its...
confluence with the MississippiRiver. This has led to the new hypothesis that the ancient UpperMississippiRiver (also named the Wyalusing River) at one time...
western Pennsylvania to its mouth on the MississippiRiver at the southern tip of Illinois. It is the third largest river by discharge volume in the United States...
Minnesota and Wisconsin, which comprise the watersheds of the UpperMississippiRiver and upper Great Lakes.[citation needed] The USGS Mineral Resources Program...
exclusively, is a variety of the French language spoken in the upperMississippiRiver Valley in the Midwestern United States, particularly in eastern...
involving most of the rivers in eastern Iowa which began June 8 and continued until July 1. Flooding continued on the UpperMississippiRiver in the southeastern...
Mississippi and Missouri Rivers Flood of 1993) was a flood that occurred in the Midwestern United States, along the Mississippi and Missouri rivers and...
abundant in the UpperMississippiRiver basin before it was impounded. Currently, skipjack is most abundant in the UpperMississippiRiver below the mouth...
UpperMississippiRiver distances from U.S. Army Corps of Engineers. Lower MississippiRiver distances from U.S. Army Corps of Engineers. Ohio River distances...
control dams and locks worldwide. The UpperMississippiRiver basin alone has 321 Tainter gates, and the Columbia River basin has 195. A Tainter gate is also...
and Ramsey, to just downstream of Hastings. This stretch of the upperMississippiRiver includes natural, historical, recreational, cultural, scenic, scientific...
Flooding in the MississippiRiver Basin during the winter, spring, and summer of 2019 caused at least 12 deaths and economic losses in 19 states totaling...