| Mulgrave | |
|---|---|
 The Mulgrave River in the Goldsbrough Valley | |
  Location of Mulgrave Riverriver mouth in Queensland | |
| Location | |
| Country | Australia |
| State | Queensland |
| Region | Far North Queensland |
| Physical characteristics | |
| Source | Bellenden Ker Range |
| 2nd source | West Mulgrave River |
| • location | west ofBabinda |
| • coordinates | 17°21′16″S145°46′52″E / 17.35444°S 145.78111°E /-17.35444; 145.78111 |
| • elevation | 376 m (1,234 ft) |
| 3rd source | East Mulgrave River |
| • location | below South Peak |
| • coordinates | 17°17′37″S145°51′00″E / 17.29361°S 145.85000°E /-17.29361; 145.85000 |
| • elevation | 665 m (2,182 ft) |
| Source confluence | West and East branches of the Mulgrave River |
| • location | south of Little Mulgrave |
| • coordinates | 17°17′50″S145°48′01″E / 17.29722°S 145.80028°E /-17.29722; 145.80028 |
| • elevation | 120 m (390 ft) |
| Mouth | Coral Sea |
• location | Mutchero Inlet |
• coordinates | 17°13′18″S145°58′30″E / 17.22167°S 145.97500°E /-17.22167; 145.97500 |
• elevation | 0 m (0 ft) |
| Length | 70 km (43 mi) |
| Basin size | 1,315 km2 (508 sq mi) |
| Discharge | |
| • location | Near mouth |
| • average | 86.4 m3/s (2,730 GL/a)[1] |
| Basin features | |
| Tributaries | |
| • right | Russell River |
| National parks | Wooroonooran National Park;Russell River National Park |
| [2][3][4][5] | |
TheMulgrave River, incorporating theEast Mulgrave River and theWest Mulgrave River, is ariver system inFar North Queensland, Australia. The 70-kilometre (43 mi)-long river flows towards theCoral Sea and is located approximately 50 kilometres (31 mi) south ofCairns.
Sourced by runoff from theBellenden Ker Range, the headwaters of the Mulgrave River rise as the east and west branches of the river below South Peak and west ofBabinda, respectively. The two branches form theirconfluence within theWooroonooran National Park and theWet Tropics World Heritage Area. The Mulgrave River flows generally north towardsLittle Mulgrave, through the outskirts ofGordonvale, and continues through theGoldsborough Valley. From Gordonvale, the river flows east by south and then south, eventually emptying into theCoral Sea 30 kilometres (19 mi) south at the southern extremity of the Yarrabah Hills range, where it meets theRussell River. TheTrinity Inlet was once the river mouth of the Mulgrave River.[6]Volcanic activity that resulted in the rise of Green Hill in the Mulgrave Valley blocked the river from entering the sea near present-day Cairns.[7] However, further research has shown river sediments above the basalt flows, suggesting that other factors, such as alluvial sediments, may have altered the river's course, possibly causing it to alternate between the two mouths over time.[8]
The river has acatchment area of 1,315 square kilometres (508 sq mi).[6] From source to mouth, incorporating the east and west branches of the river, the river descends 665 metres (2,182 ft) over a combined 78-kilometre (48 mi)course.[2][3][4]
The river is crossed by theBruce Highway south of Gordonvale via theDesmond Trannore Bridge.
Gold was discovered in the river in the 1870s, bringing considerable change to the Goldsborough Valley. Gravel is now extracted from the riverbed.[6]
Together with the Russell River, the Mulgrave River has a well-recorded flood history with documented evidence of flooding beginning in the late 19th century.[9][10]
Freshwater stonefish andcrocodiles are found in the river, so caution is advised if swimming in the river.[11] The pest fishtilapia have been discovered in the river and have been the target of eradication efforts.[12]
Yidinji (also known asYidinj,Yidiny, andIdindji) is anAustralian Aboriginal language. Its traditional language region is within the local government areas ofCairns Region andTablelands Region, in such localities asCairns,Gordonvale, and the Mulgrave River, and the southern part of theAtherton Tableland includingAtherton andKairi.[13]
This Wikipedia article incorporatesCC BY 4.0licensed text from:"Yidinji".Queensland Aboriginal and Torres Strait Islander languages map.State Library of Queensland. Retrieved30 January 2020.
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