The Illinois River is a 145-mile-long (233 km) tributary of the Arkansas River in the U.S. states of Arkansas and Oklahoma. The Osage Indians named it...

Mississippi River Illinois River (Oklahoma), a tributary of the Arkansas River, in Arkansas and Oklahoma in the United States Illinois River (Oregon), a...

the Illinois River is a tributary of the Illinois River in the U.S. states of Arkansas and Oklahoma. The stream is sometimes called Baron Fork River, Barren...

rivers in the state of Oklahoma, listed by drainage basin, alphabetically, and by size. In mean flow of water per second, the Arkansas is Oklahoma's largest...

simply, Lake Tenkiller, is a reservoir in eastern Oklahoma formed by the damming of the Illinois River. The earth-fill dam was constructed between 1947...

1809 to 1818 Illinois River, a tributary of the Mississippi River in the state of Illinois Illinois River (Colorado) Illinois River (Oklahoma) in Arkansas...

to be the "trout capital of Oklahoma", with great fishing in Lake Tenkiller, the Illinois River, and the Arkansas River. This community began as a small...

Mississippi River itself and its numerous natural tributaries and distributaries. The major tributaries are the Illinois, Missouri, Ohio and Red rivers. Given...

The Illinois Confederation, also referred to as the Illiniwek or Illini, were made up of 12 to 13 tribes who lived in the Mississippi River Valley. Eventually...

recognized Peoria Tribe of Indians of Oklahoma headquartered in Miami, Oklahoma. The Peoria people are descendants of the Illinois Confederation. The Peoria Tribe...