Hornsby Heights Hornsby Heights, New South Wales, Australia
By
Geocaching Australia on 10-Dec-10. Waypoint TP5561
Cache Details
| Difficulty: | |
| Terrain: | |
| Type: | TrigPoint |
| Container: | Other |
| Coordinates: | S33° 39.594' E151° 5.518' (WGS 84) |
| 56H 323085E 6273919N (UTM) | |
| Elevation: | 206 m |
| Local Government Area: | The Hornsby |
/151.091967,-33.6599,14/400x200?access_token=pk.eyJ1IjoiY2F1Z2h0YXR3b3JrIiwiYSI6ImNqa2l4ZzNzMDE5bjgzdm1sZGpuODF1Mm0ifQ.q8YMzVyzDJJlJHHV8EMjwQ)
Description
Hornsby Heights TS12022R
Official name of this Trig Station as per NSW Department of Lands is: Hornsby Heights.
Serial number is: TS12022R.
Last Inspected on: No Data.
Elevation is: 234 metres.
The original trig on this site was called 'Maggie' but was probably removed when the water tower was constructed. No evidence of the former trig has been found. New topographic maps show a trig on site with the name "Hornsby Heights."
The original disk is missing and only supporting post remains.
Note that the trig was on the higher, small reservoir -- and not on the larger, lower one.
The supporting post now seems to be used for a communications antenna.
A trig point (also known as a Trigonometric Station) typically consists of a black disc on top of four metal legs or concrete pillar, resembling a navigation beacon. It is also accompanied by a metal disc, which is located directly below the center point of the tripod or on top of the pillar itself.
Trig points are generally located at the top of hills or points of prominence in the landscape. Many provide unique views and challenges, with some being difficult to get to.
These points were regarded as valuable to surveyors, providing reference points for measuring distance and direction, and assisting in the creation of maps.
To log a find on the Geocaching Australia website, you will need to include a picture of the trig point, along with your GPS receiver and (preferably) yourself. Long distance / telephoto type pictures are against the spirit of this cache. You are encouraged to leave a description of your journey in your log to help others in finding the trig point.
The original collection of trig points has been sourced from Geoscience Australia and may contain inaccuracies.
Please respect local laws and regulations when searching for trig points. If you believe that a trig point is located on private property or in a dangerous location, you may archive the cache, by clicking on Log this Cache and place an "Archived" log on the Geocaching Australia website.
If you feel that you can add to the description of this trig point or adjust the difficulty / terrain ratings, please feel free to edit this cache and amend the information suitably. Vandalism of the cache description or other information will result in your account being terminated.
Logs
We think we could see a pedestal remnant from the NW side of the compound, peeking up between branches....
The 1976 survey shows a mast with a flat plate on top with another mast and vanes 2.36m immediately above, on a quad frame. Only the lower mast and plate remain. The surveyed height of the plate was 233.99m.
Stopped by @ 0810 to try and get a photo of a mast/trig/post, but really could not see much with all the trees growing up around the two reservoirs. Did my best, but a drone would be the best to see if there is something still there.
A bit of an "Unloved Trig" here, so I had better rectify that
Instead of walking from Hornsby station as I would have normally, I took the 596 bus that left me at the foot of the reservoirs, an easy way to get there.
The Trig is now only the steel post surrounded by the square safety handrail as on all reservoir Trigs. The mast and vanes have long gone, but from the right angle the post is easily seen.
While there we looked for traces of the original trig 'Maggie' which was probably on the same site at the water tower. Some rocks can be found outside the fence but I doubt that was a cairn. Was hoping it would be like the Bywater/Vize double up at Cowan.
Anyway that's a log.
We spotted the location from the Galston lookout.
This was my fourth visit to the site and my third time looking for the supposed trig. (I often drive past this area on work business and when doing other geocaches, to and from nearby Galston Gorge.)
In the end, I think I got shots of the 'post' where the trig used to be positioned. It might now be used as a support for an antenna. Of course, there's no 'black disk' of trig vanes at all visible.
I'll upload my new photos later and listen to the feedback from my colleagues.
It's hard to get a good look at the 'back' or northern side of the small and tall water tank, because of all the gum trees. When you go far enough away from the tank and fence, then more and more trees obscure your view. I would have loved to have gone up the ladder and had a peep 'up close and personal' but the warning signs are very draconian . . . I might end up on the Channel Nine News!
I'll also upload the recent 'Nearmaps' close-up of the top of the tank, looking straight down, so that you can see another angle on my photographs.
