1815 UK geologic map remains the benchmark

Many people who are familiar with introductory geology, via courses or reading, know that William Smith presented the first good geological map in 1815, a large map covering much of Great Britain. But beyond being the first such map, why was it so revolutionary and why is it still revered?

In the July issue of GSA Today, Peter Wigley addresses these very questions. Through digitization of "The 1815 Map" and poring through contemporary documents, Wigley describes how original map features were produced and presented, and compares these to those used in the generation of modern geologic maps for the same region.

Two hundred years later, the original map remains astonishingly accurate. The reasons lie in the combination of a brilliantly creative individual, a crucial collaborator, some timely technology, and an intriguing taxation law. While Wigley does not draw parallels to developments over the last few decades, one could certainly suggest a recurring theme and perhaps a future Hollywood movie.