Quiz: How did the Grand Canyon contribute to the understanding of May 10, 2025 by Orin Thorne How did the Grand Canyon contribute to the understanding of geological time? Discover more about Grand Canyon Tours at our home page. A) It showcases a visible stratification of rock layers indicating different geological eras. B) It has the largest fossil collection in North America. C) It was the first site to use radiometric dating techniques. D) It is the only canyon that demonstrates tectonic uplift. Submit Answer
