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The Upper Mississippi region, which is listed with a 2-digit hydrologic unit code (HUC) of 07, has an approximate size of 189,968 square miles (492,010 square kilometers ), and consists of 14 subregions, which are listed with the 4-digit HUCs 0701 through 0711. In a 1975 report, the region was described as "rich in water - surface water is ...
The Upper Mississippi River is today 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] Historically, it may refer to the area above the Arkansas Post, above the confluence of Ohio River, or above Cape Girardeau .
In 1988, the water level of the Mississippi fell to 10 feet (3.0 m) below zero on the Memphis gauge. The remains of wooden-hulled water craft were exposed in an area of 4.5 acres (1.8 ha) on the bottom of the Mississippi River at West Memphis, Arkansas. They dated to the late 19th to early 20th centuries.
The Lower Mississippi River is the portion of the Mississippi River downstream of Cairo, Illinois. From the confluence of the Ohio River and the Middle Mississippi River at Cairo, the Lower flows just under 1000 miles (1600 km) to the Gulf of Mexico. [ 1] It is the most heavily travelled component of the Mississippi River System.
The Mississippi River System, also referred to as the Western Rivers, is a mostly riverine network of the United States which includes the Mississippi River and connecting waterways. The Mississippi River is the largest drainage basin in the United States. [ 3] In the United States, the Mississippi drains about 41% of the country's rivers. [ 4]
The inland and intracoastal waterways of the eastern United States. The inland waterways of the United States include more than 25,000 mi (40,000 km) of navigable waters. Much of the commercially important waterways of the United States consist of the Mississippi River System —the Mississippi River and connecting waterways.
JACKSON, Miss. (AP) — “Layers of inadequate oversight and enforcement” by state and federal agencies contributed to a water crisis in Mississippi's capital city that left tens of thousands ...
Lock and Dam No. 19 is a lock and dam located on the Upper Mississippi River near Keokuk, Iowa. In 1978, the Keokuk Lock and Dam was listed in the National Register of Historic Places, #78001234. In 2004, the facility was listed in the National Register of Historic Places as Lock and Dam No. 19 Historic District, #04000179 covering 1,605 acres ...