Input (grade 13): Its source is in the Northern Territory's MacDonnell Ranges, and the name Finke River is first applied at the confluence of the Davenport and Ormiston Creeks, just north of Glen Helen.
Output (grade 7): It starts in the MacDonnell Ranges in the Northern Territory. it is formed where Davenport and Ormiston Creeks join together, just north of Glen Helen.