G,day,
Not so obscure - if it's the one I think it is. That's a line from the Henry Lawson poem "The Bush Girl" which starts:

So you rode from the range where your brothers select

If that's the one I'll type the rest for you. I've heard it sung & may have the tune, however a young lady only identified as F33 has my book of tunes for Lawson's poems at the moment. Maybe she'll post the tune.

Cheers,
Alan