31 49.329s 115 44.364e , Hillarys , Western Australia
Posted by: 
blingg
S 31° 49.329 E 115° 44.364
50J E 380696 N 6478585
A GSR validation marker
Waymark Code: WMHQ4D
Location: Western Australia, Australia
Date Posted: 08/03/2013
Views: 5
The W.A. Department of Transport have placed Global Positioning System (GPS) satellite navigation validation markers at a number of public boat ramps and associated jetties, which mariners or owners of portable GPS units can use to validate their position and map datum settings. These marks are small, flat, yellow plastic markers similar to road lane markers or "cat's eyes"
There are over 60 of these markers in more than 30 locations around the coast of Western Australia, located at public boatramps and public jetties. At each site there is one marker in the parking area and one on the end of a jetty.
Type of structure: Sign
Difference between the post coordinates and your GPSr reading:
zero on location 1
0.001 at location 2
Reason for the coordinates: Boeting GPS validation
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