There’s not much left of the Allison Trig Station; it’s been significantly depiled, with only a circle of rocks left from what would have been a substantial cairn or plinth. The trig point is now in fairly thick scrub, requiring a short bush-bash from Ku-ring-gai Chase Road or the Kalkari Track (which is parallel to the road). It’s not really obvious that the location is on top of a hill, and there are no views.
More information on Allison Trig Station
- Geocaching Australia – Allison