Today, the Denali Fault rips apart some of the North American plate, but it was once a place where tectonic plates came ...

Looking at an igneous rock, such as the granite along Stockton Hill Road at milepost 10, you’ll see a variety of minerals.

Known as the Vishnu Basement Rocks, they are some of the oldest rocks in the entire formation. The mountains were formed ...

After discovering the rock formation, the expedition crew explored more than 1,000 square miles (2,590 square kilometers) for a search total of at least 7,700 square miles (19,943 square ...