St. Francis River

St. Francis River
The St. Francis River at Lake City, Arkansas is placid and silt-laden.
Map of the St. Francis River watershed. The Castor/Whitewater headwaters (darker shade on the map) were historically part of the St. Francis watershed but are now diverted to the Mississippi.
Location
CountryUnited States
StateMissouri, Arkansas
RegionOzark Plateau, Mississippi Alluvial Plain
DistrictSt. Francois Mountains, Crowleys Ridge
CitiesFarmington, Missouri, Fisk, Missouri, Lake City, Arkansas, Marked Tree, Arkansas
Physical characteristics
SourceElephant Rocks State Park
  locationIron County, St. Francois Mountains, Ozark Plateau, Missouri
  elevation1,568 ft (478 m)
MouthMississippi River
  location
Near Helena-West Helena, Phillips County, Mississippi Alluvial Plain, Arkansas
  coordinates
34°37′28″N 90°35′31″W / 34.62444°N 90.59194°W / 34.62444; -90.59194
  elevation
171 ft (52 m)
Length426 mi (686 km)
Basin size7,550 sq mi (19,600 km2)
Discharge 
  locationLatitude of Wittsburg
  average8,976 cu ft/s (254.2 m3/s)
Basin features
Tributaries 
  leftLittle St. Francis River, 12-Mile Creek, Blue Spring, Mingo Ditch, Little River
  rightStouts Creek, Marble Creek, Big Creek, Otter Creek, L'Anguille River

The St. Francis River is a tributary of the Mississippi River, about 426 miles (686 km) long, in southeastern Missouri and northeastern Arkansas in the United States. The river drains a mostly rural area and forms part of the Missouri-Arkansas state line along the western side of the Missouri Bootheel.