I recently did a service visit to the SAGRN radio site at North Block on Lower Eyre Peninsula. One of my clients uses the SAGRN tower for their radio system.
North Block rises 371 metres above the surrounding countryside. You can see South Block to the left and Marble Range to the right.
The access track is VERY steep in places and the front wheel drive work car struggles quite a bit to make it to the top! It is amazing how capable a car can be when it does not belong to you!
I would probably not attempt this without a four wheel drive after it has been raining!