Perhaps six weeks ago I went out to a spot marked "Pinnacle" on a 1991 1:50000 McDouall Range topographic survey map. grid refernce is MU037316.
I like this bike, with the warm climate here I don't think the high speed aerodynamics of a crouched-over seating position are such a big deal. It can carry a pump and a 2.4 litre water bottle, it is tied down with a length of old tyre tube.
Tennant Creek township is about 12km ESE, not visible.