| Hay River | |
|---|---|
 Hay River flowing into Wilson Inlet | |
 | |
| Location | |
| Country | Australia |
| Physical characteristics | |
| Source | |
| • location | West ofMount Barker |
| • elevation | 225 metres (738 ft)[2] |
| Mouth | |
• location | Wilson Inlet |
• elevation | sea level |
| Length | 80 km (50 mi)[1] |
| Basin size | 129,800 hectares (320,743 acres) |
| Discharge | |
| • average | 69,400 ML/a (2.20 m3/s; 77.7 cu ft/s) |
TheHay River is ariver in theGreat Southern region ofWestern Australia. Thetraditional owners of the area are theNoongar people, who know the river asGenulup.[3]
The river was given its English name in December 1829 by naval ship's surgeonThomas Braidwood Wilson after Sir Robert William Hay,Permanent Under-secretary of State for the Colonies from 1825 to 1836. Wilson saw the river while exploring the area in company with the Noongar manMokare, John Kent (officer in charge of the Commissariat atKing George Sound), two convicts and Private William Gough of the39th Regiment, while his shipGovernor Phillip was being repaired at King George Sound.[4]
The Hay River is part of theDenmark catchment, which comprisesWilson Inlet,Torbay Inlet and Lake Powell, together with the catchments of theDenmark, Hay and Sleeman-Cuppup Rivers and their tributaries.[5]
The river rises west ofMount Barker near Wilpuna Park and flows south east as far as Ungerup then flows in a south-south-westerly direction through theMount Lindesay National Park then crosses theSouth Coast Highway and discharges into Wilson Inlet.[6]
Thetidal influence is 5 kilometres (3 mi) upstream from where the river flows into the inlet. The Hay River flows all year and thewater quality is marginallysaline tobrackish. It is estimated that 70% of thecatchment area has been cleared for agricultural purposes but 42% of theriparian zone was pristine.
Tributaries of the river include Sleeman Creek and Mitchell River.
34°58′19″S117°27′39″E / 34.97194°S 117.46083°E /-34.97194; 117.46083
Rivers ofWestern Australia | |
|---|---|
| Rivers of theGascoyne region | |
| Rivers of theGoldfields–Esperance region | |
| Rivers of theGreat Southern region | |
| Rivers of theKimberley region |
|
| Rivers of theMid West region | |
| Rivers of thePeel andPerth regions | |
| Rivers of thePilbara region | |
| Rivers of theSouth West region | |
| Rivers of theWheatbelt region | |
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