What kid hasn’t had some sort of rock collection? Discovering hidden gems is always a treat. Western Colorado is perfect for exploring geology with your kids. Look around — there is evidence of eons ...

Explore Pennsylvania locations known for quartz, fossils, and crystals, perfect for collectors and outdoor enthusiasts.

Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved ...

In the late 1700s, while inspecting a coal mine in southwest England, a young surveyor named William Smith noticed a surprising pattern: from one location to the next, rock layers (or "strata") were ...