[dropcap]I[/dropcap] met John Reistoffer in Caracas in the late 1990s. He, his brother and I planned to drive to Lake Guri in east central Venezuela to fish for peacock bass. A bonus which I did not expect was the geological tour of the country as we were driving SE across the Orinoco R. to the lake. You see, John was a petroleum geologist working for the Venezuelan oil company and knowing what’s under the dirt and its history is part of his job. He spoke of the formation of the tepuis fro...