Yosemite National Park and Granite...

Many National Parks were founded on their geology, and Yosemite is known throughout the world for its exceptional high cliffs and rounded domes. Visitors to the park, from hikers to rock climbers, experience a landscape dominated by granite.

This is a great video telling the story of Yosemite and its abundance of granite. These National Park Rangers explain how granite is formed under the Earth's surface. Pretty interesting little video about granite.