Tindal is outside the town of Katherine, south of Darwin. This was the best map I could find in a hurry (and requires Adobe Acrobat viewer to use it)...
http://www.abs.gov.au/Websitedbs/D3110122.NSF/0/f9c96fb635cce780ca256d420005dc02/$FILE/NT_map.pdf
And to help with the distances (here given in kilometres...), 10km is roughly 6 miles.
You'll find a lot of central and northern Australia is very sparsely populated indeed.
Nice map for geographical orientation. Is the south central portion of the continent (area north of the Bight) as sparsley populated?
I enjoy reading about Australian explorer's adventures in the 1800's. IIRC no one believed the first guy who crossed the Bight alone.