When you have a block with challenging terrain eg it’s steep or even very steep but you might still want to fence it out of various reasons.

Maybe it’s a good paddock for goats or you’re legally obliged to do so. For example we recently fenced in very steep terrain and along a nearly impassable ridge because it’s the boundary of a rifle range and by law it has to be fenced and show warning signs right around their perimeter. The range is located so that all shots are fired into a mountain, which makes it very safe but extremely steep for the fencing. We had to carry most of the gear in because in most place no vehicle could get up the slopes. However metal fencing was still a good option to do since carrying star post and pile driver is not to hard. Carrying the roles of wire where a bit of a challenge however.
We have specialised equipment allowing us to drive posts in virtually any terrain.

Other fence installations we have completed recently were for goats, cattle and reserves.