Rivers with waterfalls or rapids will have the highest oxygenation. By contrast, still waters such as placid streams, are prone to de-oxygenation processes such as algae growth.
The oxygen content of a river or stream is likely to be highest at the source. The source of the river or stream is where it originates.
the Mississippi river
Mount Everest is the highest mountain above sea level.
It is 6,062 feet above sea level.
Decomposers acting on the waste materials use up oxygen
The highest point of elevation for the Ohio River is near its source at the confluence of the Allegheny and Monongahela rivers in Pittsburgh, Pennsylvania. This elevation is approximately 1,200 feet (370 meters) above sea level. As the river flows downstream, its elevation decreases significantly, ultimately reaching near sea level at its confluence with the Mississippi River in Cairo, Illinois.
Charles Mound, located in northwestern Illinois, has the state's highest elevation at 1,235 feet above sea level. The lowest point in Illinois is on the Mississippi River at 279 feet above sea level.
The highest point in Oklahoma is Black Mesa, at an elevation of 4,975 feet above sea level. The lowest point is the Little River near Idabel, with an elevation of 289 feet above sea level.
The Kansas river runs through Kansas City, Kansas. At river level the altitude is approximately 800 ft above sea level.
It only needs to erode to the highest point of a body of water, such as sea level.
When a river floods, its crest is the highest level the floodwaters reach. After the crest, the river level starts going down.
Highest Point: Gannett Peak; 13,804 feet, 5th Lowest Point: Belle Fourche River; 3,099 feet, 49th