Charles Southworth was a collector of fossils in the Rock Glen, Thedford, Arkona area. He was one of many amateur fossil enthusiasts in the area. The excess of fossils at Arkona, that still exists today, is a result of glacial activity. 350 million years ago, Arkona was beneath the sea. This accounts for the trilobytes and brachiopod seashells that appear there. The large round boulders found at Kettle Point have both a geological explanation and one sacred to the Nishinabi people. The Nishinabis believe that the creator placed the kettle-shaped rocks in only two places on Earth: New Zealand and Lambton County. Geologically, the rocks are called concreations. Because the oil industry began in Lambton County, it was also exhausted there first. This meant that talented men, who were the top in their fields had no purpose in Lambton. They travelled to places all across the world to use their expertise in drilling. These places included Venezuela, Trinidad, Austria-Hungary, Italy, Poland, Romania, Russia, Iraq, Iran, Saudi Arabia, Persia, Sumatra, Java, Borneo, and the East Indies. Men from Lambton drilled the first well in Iran.