Gibraltar Bowral, New South Wales, Australia
By Geocaching Australia on 01-Sep-09. Waypoint TP0198

Gibraltar TS7068

Official name of this Trig Station as per NSW Department of Lands is: Gibraltar.

Serial number is: TS7068.

Last Inspected on: August 4, 1983.

Elevation is: 868 metres.

This Trig started life as a drill hole in the sandstone rock with a convict arrow carved next to it. By 1974 a ring of cemented bricks was added to surround the drill hole. By 1979 a 12 inches high circular brick, stone and cement base was built and a stainless pin placed in the drill hole and enclosed in a PM Box. in the early 1980's it was found that the visibility had been compromised by the telecom mast and buildings around it and a 2 metres base was built in 1983, however visibility has since further degraded due to the trees in the area being subject to a preservation order.

It is interesting to note that the Geoscience Australia height data refer to the original mark not the current one, hence the difference.

This particular trig point is located just below the Telstra tower on top of Mt Gibraltar between Mittagong and Bowral. Easy drive up access from either town and a very short walk from the road.

Terrain rating has been set to 1.5 as to get to the base of the cairn the trig is on would still meet the requirements and be almost wheelchair accessible. If you choose to climb the 2 metre ladder then add half a point.

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.

Addtional Information
Source: Geoscience Australia
Type: Horizontal Control Point
Elevation: 863.88
PID: 2950549
Other Information: Geoscience Australia