The circular section next to the rectangular manhole

The powerlines continue around the hill

One goes to the reservoir

And the other...?

The Tuggeranong Parkway south of Oakey Hill. If you look carefully between the on-ramp and the Parkway heading south, there is a red light for the Parkway's offramp.

A kangaroo

A magpie

Two magpies

The powerline continues, and there's the phone tower again.