The Cooks Vale Creek, a mostly

perennial river A perennial stream is a stream that has continuous flow of surface water throughout the year in at least parts of its catchment during seasons of normal rainfall, Water Supply Paper 494. as opposed to one whose flow is intermittent. In the ab ...

that is part of the Lachlan sub-catchment of the Murrumbidgee

catchment A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, th ...

within the

Murray–Darling basin The Murray–Darling basin is a large geographical area in the interior of southeastern Australia, encompassing the drainage basin of the tributaries of the Murray River, Australia's longest river, and the Darling River, a right tributary o ...

, is located in the

South West Slopes The South Western Slopes, also known as the South West Slopes, is a region predominantly in New South Wales, Australia. It covers the lower inland slopes of the Great Dividing Range, extending from north of Dunedoo through central NSW and into ...

region of

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

, Australia.

Course and features

Formed by the

confluence In geography, a confluence (also: ''conflux'') occurs where two or more flowing bodies of water join to form a single channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river ( main stem); ...

of two unnamed watercourses, the Cooks Vale Creek (technically a river) rises southwest of Hadley, on the south western slopes of the Great Dividing Range, and flows generally northwest by north before reaching its