Friends of Trigg Bushland

Firewood Banksia.

A feature of Trigg Bushland is the parabolic dune, sand dune blow-outs that have been stabilised by a long process of revegetation. Few examples of this type of landform remain within the metropolitan area. The northern rim of the major Trigg parabolic dune borders Karrinyup Road and reaches its eastern extremity just short of the corner with Jeanes Road. The southern rim borders Jeanes Road.

The dunes are composed of white Quindalup sands formed within the last 6,000 years, during a period of rising and falling sea levels. A close examination will reveal shell fragments typical of beach sands.

As these dunes advanced they buried the limestone and yellow sands of the 100,000 years old Spearwood dune system. In some parts of the reserve, north of Karrinyup Road for example, Spearwood sands still occur at the surface.

Contact Details and More Information

Link to our home page

 

Friends of Trigg Bushland Location

Donations

Donations and support from the wider community help us to protect and campaign for our Urban Bushland.

Make a donation

newsletter Signup

Get the latest news and key events delivered to your inbox.

Become a Member

We are a peak environmental group in WA. One of our key strengths is our amazing group and individual members.

Become member
Location

Urban Bushland Council WA Inc

2 Delhi Street West Perth WA 6005

PO Box 326 West Perth WA 6872

(08) 9420 7207 (please leave a message)

Send this to a friend