By far one of the best geology lesson videos yet. Absolutely appreciate the fact that you actually go out in the field to demonstrate and give examples, and include history instead of just sitting behind a camera trying to explain with silly little drawings. Truely one of a kind, we're very fortunate. Thank you for all your work, teachings and bringing like minded people together. Awesome video!I totally agree with you Jeff, always look for a gold mining district where gold has already been found that not already claimed up