re: royboy have a look at the cdu posts
The tenement immediately south of CDU's land belongs to Mount Isa Mines (Xstrata). However, the stretch is just under 3 km and thereafter EXS' land starts.
Try this site:
http://www.nrm.qld.gov.au/
Select "Interactive Resource and Tenure Maps" to find the land. Very helpful.
Trust this helps.
BYG