
Nick on the Rocks: Colossal batholiths collide in the Cascades
The massive Golden Horn and Black Peak granite towers near Washington Pass tell a story 50 million years in the making.
Adam Spiro Brown manages Original Productions at Cascade PBS. He previously ran Lucid Visual Media, an independent production company, creating award-winning documentaries, films and commercials.
The massive Golden Horn and Black Peak granite towers near Washington Pass tell a story 50 million years in the making.
Lewis and Clark were astounded by this 800-foot-tall basalt tower on their journey down the Columbia River, but didn’t know its fiery origin story.
Why are some salty and some freshwater? A giant ice sheet carved them 16,000 years ago, creating the hills, valleys and waterways that shape the city.
3,000 years of Ice Age activity shaped Pateros in Central Washington where the Methow River meets the Columbia.
The mountain’s namesake granite was used to build Seattle’s iconic Smith Tower and is coveted by climbers. But its peak is made of a much older rock.