Hamersley River: Difference between revisions
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The headwaters of the river rise east of Fitzgerald and just north of the [[South Coast Highway]] on an undulating sandplain on the edge of the [[Yilgarn Block|Yilgarn plateau]] and flows in a south easterly direction. The river flows through the [[Fitzgerald River National Park]] winding through gorges cut into faults in the [[quartzite]] and [[schist]] of the Mount Barren formation until discharging into the Hamersley Inlet and on to the [[Southern Ocean]]. |
The headwaters of the river rise east of Fitzgerald and just north of the [[South Coast Highway]] on an undulating sandplain on the edge of the [[Yilgarn Block|Yilgarn plateau]] and flows in a south easterly direction. The river flows through the [[Fitzgerald River National Park]] winding through gorges cut into faults in the [[quartzite]] and [[schist]] of the Mount Barren formation until discharging into the Hamersley Inlet and on to the [[Southern Ocean]]. |
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Hamersley Inlet is a wave dominated [[estuary]] approximately {{convert|7|km|mi|0}} in length with a depth of about {{convert|2|m|ft|0}}<ref>{{cite web|url=http://www.rivercare.southcoastwa.org.au/infodata/fitzgeraldc/hamersleyi/hamersleyi.html|title=South Coast Rivercare - Hamersley Inlet|year=2002|accessdate=15 October 2010}}</ref> with a total surface area of {{convert|2.9|km2|sqmi|0}}.<ref>{{cite web|url=http://dbforms.ga.gov.au/pls/www/npm.ozest.show_mm?pBlobno=9444|title=Estuary Assessment Framework for Non-Pristine Estuaries - Estuary 888 - Hamersley Inlet|year=2006|accessdate=25 April 2009}}</ref> |
Hamersley Inlet is a wave dominated [[estuary]] approximately {{convert|7|km|mi|0}} in length with a depth of about {{convert|2|m|ft|0}}<ref>{{cite web|url=http://www.rivercare.southcoastwa.org.au/infodata/fitzgeraldc/hamersleyi/hamersleyi.html|title=South Coast Rivercare - Hamersley Inlet|year=2002|accessdate=15 October 2010}}</ref> with a total surface area of {{convert|2.9|km2|sqmi|0}}.<ref>{{cite web|url=http://dbforms.ga.gov.au/pls/www/npm.ozest.show_mm?pBlobno=9444|title=Estuary Assessment Framework for Non-Pristine Estuaries - Estuary 888 - Hamersley Inlet|year=2006|accessdate=25 April 2009|deadurl=yes|archiveurl=https://web.archive.org/web/20090523085037/http://dbforms.ga.gov.au/pls/www/npm.ozest.show_mm?pBlobno=9444|archivedate=23 May 2009|df=dmy-all}}</ref> |
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The river was named by the explorer and [[Surveying|surveyor]] [[John Forrest]] in 1871 while on expedition in the area. He is thought to have named it after his future wife, [[Margaret Forrest|Margaret Hamersley]] or her [[Hamersley family|family]] |
The river was named by the explorer and [[Surveying|surveyor]] [[John Forrest]] in 1871 while on expedition in the area. He is thought to have named it after his future wife, [[Margaret Forrest|Margaret Hamersley]] or her [[Hamersley family|family]] |
Revision as of 15:24, 28 October 2017
Hamersley River | |
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Physical characteristics | |
Source | |
• elevation | 252 metres (827 ft)[1] |
Mouth | |
• location | Hamersley Inlet |
• elevation | sea level |
Length | 40 kilometres (25 mi)[2] |
The Hamersley River is an ephemeral river in the Great Southern region of Western Australia.
The headwaters of the river rise east of Fitzgerald and just north of the South Coast Highway on an undulating sandplain on the edge of the Yilgarn plateau and flows in a south easterly direction. The river flows through the Fitzgerald River National Park winding through gorges cut into faults in the quartzite and schist of the Mount Barren formation until discharging into the Hamersley Inlet and on to the Southern Ocean.
Hamersley Inlet is a wave dominated estuary approximately 7 kilometres (4 mi) in length with a depth of about 2 metres (7 ft)[3] with a total surface area of 2.9 square kilometres (1 sq mi).[4]
The river was named by the explorer and surveyor John Forrest in 1871 while on expedition in the area. He is thought to have named it after his future wife, Margaret Hamersley or her family
The river is an important drainage network in the National Park. The river flows very little under normal conditions but floods infrequently after heavy rain events.
The upper part of the catchment has been mostly cleared for agriculture but the lower part in the National park is in near pristine condition. Overall 20% of the river's catchment has been cleared.[5]
References
- ^ "Bonzle Digital Atlas – Map of Hamersley River". 2009. Retrieved 12 July 2016.
- ^ "History of river names – H". Western Australian Land Information Authority. Archived from the original on 19 April 2021. Retrieved 6 September 2011.
- ^ "South Coast Rivercare - Hamersley Inlet". 2002. Retrieved 15 October 2010.
- ^ "Estuary Assessment Framework for Non-Pristine Estuaries - Estuary 888 - Hamersley Inlet". 2006. Archived from the original on 23 May 2009. Retrieved 25 April 2009.
{{cite web}}
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ignored (|url-status=
suggested) (help) - ^ "South coast Rivercare - Hamersley River". 2002. Retrieved 24 April 2009.
33°56′53″S 119°55′12″E / 33.94806°S 119.92000°E