Yes, I wasn't trying to hide anything, just not to confuse with extra information. The basic problem still stands as in the OP...?ÿ I have a file with...

Thanks Moe, heres the thing...?ÿ the surveyor gave me a document with the MGA & Project coordinates as in my OP, and also the scale factors as in ...

Thank you so much to all for your fantastic replies.....?ÿ?ÿ you have been excellent!!!! I am still coming to grips with all of this, and you all have...

Thanks Dave.....?ÿ?ÿ see my reply to MightyMoe... rgds Mike

Thanks Moe, yes, I realise I cant do anything with one point.....?ÿ I was just trying to get the concept....?ÿ I do of course have many points, in fac...