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Crag & Route Beta

Area	Location	Sub Location	Crag	Links
VIC Grampians	(General)	(General)	(General)	[ Grampians Guide \| Images ]

Topic Date User

Anyone know how to convert GR to lat/long 18-Jun-2014 At 3:16:14 PM mallion

Message

On 18/06/2014 gnarly_rider wrote:
>
>2/. You will also need to know the Projection in which these coordinates
>have been measured, which will be a function of the year they were provided.
>The 3 most recent Projections were AGD66, AGD84 and GDA94, the last 2 digits
>(obviously) representing the year that projection was created (and generally
>was then used in preference to the previous projections. So if the map/booklet
>your GR numbers have coem from was circa 1990, most likely the GR values
>are using AGD84
>

All good, but AGD66, AGD84 and GDA94 are not projections they are just coordinate systems.