"Alaska Gold From The Blue Ribbon Mine"
Here is some gold recovered from a bulk test at the Blue Ribbon Mine, Dutch Hills, Alaska.
And here is some more. You can see that much of the gold is quite rusty. It's also coarse. This tells us that it has not traveled far from it's source, and that some of it, at least, was subjected to oxidization. (That's how it became rusty). Remember this, for when you are panning, not all that is gold glitters. People have actually thrown away the rusty nuggets, thinking they were something else!