I'm from Uzbekistan, then Philly, briefly passed as Argentinian and now getting ready for Bolivia. I know about geology and Latin American history, and I spend most of my time taking/looking at photos, writing and hustlin'. I wrote my undergraduate thesis on Potosi, the geology and history of it, and have been trying to get back there again for some time.
http://www.phillycrow.com
http://www.phillycrow.blogspot.com