4.6 billion years is a long story to tell within a human lifetime, let alone a single article, yet here I am trying to sum up PA’s place – southeastern PA in particular – in Earth’s history in roughly 2,000 words. Why? Because I’ve found that understanding our place in the world of rocks builds […]
A Very Brief History of Southeastern PA’s Geology
![](https://heritageconservancy.org/wp-content/uploads/2024/01/Screenshot-2024-01-11-at-3.52.42-PM-2048x1137.png)