Hi Morgan
I'm also from Ballarat and these are the areas I can suggest for changes of scenery- Smythesdale, Scarsdale, Snake Valley, Happy Valley, Devils Kitchen, Linton, Skipton, Berringa, Staffordshire Reef, Black Hill (Scarsdale), Mount Clear (lots of trash here though), Avoca, Creswick, Clunes, Talbot, Yandoit, Between Daylesford & Blackwood (Wombat Side).
Jump on GEOvic and select crown land, mines & mineral occurences in the 'add layers' section- this will give you pleanty of options and also point out historical mining activity.
I agree with Teemore- or you could just throw a dart at a map! We live in the golden triangle it's arguably the best place in the world to look for the elusive alluvial- Good luck!