Too late. I've already dug out your backyard and am in the process of excavating all my neighbors yards with a backhoe. (smirk) Seriously though, I have a co-worker who has a brother who thinks he can pan for gold in the Mississippi. I told him his brother would be more likely to find diamonds in his turnip patch than gold in the Mississippi.
As a side note, there are industrial diamonds in Wisconsin around the Superior area. See you up there. (double yuk yuk)