Some good--most bad. The first thing to move is the surface soils--which are usually devoid of gold anyhow. Massive amounts of dirt takes MANY YEARS to classify down to a decent paystreak. I've always loved these urban legends that herald massive amounts of gold from landslides.
only problem is--gee wiz--ifn' the gold wasn't there in the first place there ain't no gold fairy that sprinkles it where it wasn't in the first place. 