Anywhere from 85-120 million years ago magma from an arc of erupting volcanoes solidified deep within the Earth’s crust and began the process of creating the Sierra Nevada. Tectonic plates began to ...

Balancing rocks is a learned skill and a growing Earth art form. Students will first experience the skill of balancing by designing a simple balance using a rock as a fulcrum to balance two river ...

If you know Peter Juhl, it’s probably not surprising that his cell phone background shows seven rocks that sit perfectly balanced in a curved tower, seemingly impossibly perched upon a Lake Superior ...