This is the first map I used, which came from a release by...

This is the first map I used, which came from a release by Regency mines

http://www.rns-pdf.londonstockexchange.com/rns/5963L_6-2012-9-5.pdf

The other image is from this Sirius presentation

http://www.siriusresources.com.au/documents/SiriusMining2010Octoberv8.pdf

When you compare the ground Sirius held then to what they hold now, this presentation would indicate quite a lot was given up - including the land linking Nova to the tenements in the west.

http://www.siriusresources.com.au/documents/121114SiriusARCPerth.pdf

I also used this map as a source, although it's possible it could be a little out of date as it fails to show the Regency Mines ground.