Helena Valley is the name of a river valley and a locality in the foothills of the

Darling Scarp The Darling Scarp, also referred to as the Darling Range or Darling Ranges, is a low escarpment running north–south to the east of the Swan Coastal Plain and Perth, Western Australia. The escarpment extends generally north of Bindoon, to t ...

Perth Perth is the capital and largest city of the Australian state of Western Australia. It is the fourth most populous city in Australia and Oceania, with a population of 2.1 million (80% of the state) living in Greater Perth in 2020. Perth i ...

, Western Australia.

Geology

The river valley is the centre of the catchment of the

Helena River The Helena River is a tributary of the Swan River in Western Australia. The river rises in country east of Mount Dale and flows north-west to Mundaring Weir, where it is dammed. It then flows west until it reaches the Darling Scarp. It passes ...

and extends from the edge of the Darling Scarp where

Boya Boya may refer to: *Boya, Western Australia *Boya, Nepal *Boya people, an ethnic group in Sudan *Boyar caste, Boyar caste of India *Mireia Boya Busquet (born 1979), Spanish scientist and politician *Pierre Boya (born 1984), Cameroonian footballer * ...

, Gooseberry Hill and Helena Valley define the "mouth" of the valley that opens to the Swan Coastal Plain, east and south east past

Mundaring Weir Mundaring Weir is a dam (and historically the adjoining locality) located from Perth, Western Australia in the Darling Scarp. The dam and reservoir form the boundary between the suburbs of Reservoir and Sawyers Valley. The dam impounds the Hel ...

and Lake C.Y. O'Connor to its origins in the region of

Mount Dale Mount Dale is a mountain in Western Australia about east of Armadale in the Shire of Beverley. At high, it is one of the highest points in the Darling Scarp. It is best known for its walk track, which forms part of the Bibbulmun Track. Th ...

. The soils of Helena Valley are characteristic of the eastern Swan Coastal Plain, ranging from sand to loam and

clay Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4). Clays develop plasticity when wet, due to a molecular film of water surrounding the clay par ...

, with a neutral pH tending towards moderately acid.

Locality

The locality is within the

Shire of Mundaring The Shire of Mundaring is a local government area in eastern metropolitan Perth, the capital of Western Australia. The Shire covers an area of and had a population of approximately 38,000 as at the 2016 Census. History The Greenmount Road ...

, situated just south west of Boya and Greenmount Hill, 5 kilometres from Midland. It consists of many rural houses, but also contains six estates, and a shopping centre located in one of the estates. Helena Valley Primary School is located at the base of Greenmount Hill.http://www.helenavalley.wa.edu.au/ Helena Valley Primary School

Early settlers

* James Drummond, noted botanist, after whom the street Drummond Gardens is named

Notes

References

* *

External links

Helena Valley
on

Geoscience Australia Geoscience Australia is an agency of the Australian Government. It carries out geoscientific research. The agency is the government's technical adviser on all aspects of geoscience, and custodian of the geographic and geological data and knowle ...

* REIWA suburb profile fo
Helena Valley
{{Shire of Mundaring suburbs Suburbs and localities in the Shire of Mundaring Suburbs of Perth, Western Australia Helena River