Hope River is a river in central Western Australia

Western Australia

Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...

. It is a tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

 of the Yalgar River

Yalgar River

The Yalgar River is a 142-kilometre-long tributary of the Murchison River, located in the Shire of Meekatharra in central Western Australia. It arises near the Great Northern Highway about 50 kilometres north of Meekatharra, flowing about 75 kilometres westward to a junction with its tributary, the...

, which is in turn a tributary of the Murchison River

Murchison River (Western Australia)

The Murchison River is the second longest river in Western Australia. It flows for about from the southern edge of the Robinson Ranges to the Indian Ocean at Kalbarri. It has a mean annual flow of about 200 million cubic metres.-Course:...

. It arises from Lake Anneen

Lake Anneen

Lake Anneen, sometimes referred to as Anneen Lake or Nannine Lake, is a DIWA-listed salt lake system in Western Australia. It is located at , about 40 kilometres southwest of Meekatharra....

 about 40 kilometres southwest of Meekatharra, and flows in a north-westerly direction for about 102 kilometres before disgorging into the Yalgar. The origin of the name is unknown, except that the name was supplied to authorities the manager of Belele Station in 1943.

The only tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

of the river is Tieraco Creek.