Minnesota has the honor of sheltering the headwaters of the mighty Mississippi River. From its start at Itasca State Park, the Mississippi River flows south 2,350 miles to the Gulf of Mexico.
A basin is an area of land that drains to a particular river or lake. The Mississippi's first basin is called the Upper Mississippi River Basin, and it covers approximately 20,100 square miles. The basin stretches from the headwaters of the Mississippi River at Lake Itasca to Lock and Dam Number 2 near Hastings. As the river runs this course, it drains into a mixture of forest, prairie, agriculture and urban land areas.
The TMDL projects located in the Upper Mississippi River Basin are listed in the left column of this page.
For information about TMDLs, go to the main TMDL Web page.