Any directions as to how to get on this track from Maddocks Rd? Also, heading past the HBMI quarry do you continue straight ahead off the sealed road (with the weigh bridge on your right?) towards the tank in the distance?

I really should've called this track "Jamiesons Road to Maddocks Road".

From the HBMI end, you have to ride around the boom gate and continue following the road. Just over the crest there is a gravel pit on the left, go through this area and you should see the tank at the other end.

From the Maddocks road end, you can get to this track by continuing along the "private road" (the right fork at the end of the road). The track starts at the green shipping containers or, further along, you can jump the gate that leads to the high voltage power lines. I'm pretty sure that its crown land so entering via the "private road" should be ok. Also, I'm pretty sure there is a way to get to this area from Leslie Road (somewhere along the gravel section on the HBMI side of the highway), however I haven't been this way. There are numerous other tracks in this area other than the ones I've mentioned.

Whenever I enter or exit this track I feel like I'm running the gauntlet so while I think its ok, I take no responsibility :)

Here's a map with stuff

Not actually Crown land...has a private owner.