What kind of sluice? You guys get flour gold mostly?
I assume you're not in California (dredging not legal), so figure its gotta be GA?
N. Georgia has a lot of alluvial gold. And legends of an old Cherekee horde still abound for the treasure seekers out there.
Good luck with that, an unknown with potential, to balance out your other bet here, with a lot more known, and yes, far greater potential. To quote from "Oh Brother Where Art thou?", "Come on in boys, the waters FINE!" :)