Drouin East PM 138 Rokeby, Victoria, Australia
By
darsenator on 16-Aug-16. Waypoint TP7419
Cache Details
| Difficulty: | |
| Terrain: | |
| Type: | TrigPoint |
| Container: | Other |
| Coordinates: | S38° 4.557' E145° 55.459' (WGS 84) |
| 55H 405654E 5785211N (UTM) | |
| Elevation: | 155 m |
| Local Government Area: | Baw Baw |
/145.924317,-38.07595,14/400x200?access_token=pk.eyJ1IjoiY2F1Z2h0YXR3b3JrIiwiYSI6ImNqa2l4ZzNzMDE5bjgzdm1sZGpuODF1Mm0ifQ.q8YMzVyzDJJlJHHV8EMjwQ)
Description
Ground Level bronze plaque set in pre-cast concrete block
A Trig Point is a virtual cache which requires a cacher to locate the Trigonometric Station at GZ.
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.
This trig is a round metallic survey marker and is set in a precast concrete block placed at ground level.
Using the web-based "Survey Marks Enquiry Service (SMES)", the Mark name has being acquired.
The official name for this cache is "Drouin East PM 138".
Dated: 15/12/1987
http://maps.land.vic.gov.au/lassi/downloadSketches.do?MARK_ID=22078
This is a very simple drive to trig with parking available on road side.
Look for a "light blue" metal pole as it will mark the location of the bronze plaque.
Logs
http://wiki.geocaching.com.au/wiki/Trigpoint
Benchmarks/Survey Marks
A benchmark/survey mark is a bronze disc which is also used by surveyors and are either points of known location (latitude/longitude) or height.
A trig point will always be associated with a survey mark, however survey marks can be independent of a trig point.
There are many (in the hundreds of thousands) of benchmarks/survey-marks around Australia.
As this is the case, it was decided only to list actual trig points, rather than add hundreds of thousands of listings into the database. There is another option, however, for people whom wish to log such entities. There are location-less cache categories for almost all states for logging state survey marks
