Instead, Yosemite granite had a deeper source. Huge volumes of magma -- hot, molten rock -- pooled up in large chambers below that ancient volcanic landscape. Just as ice crystals develop on ...

Hawaii's Kilauea volcano shot lava as high as 1,000 feet into the air during its most recent eruptive episode, geologists said Thursday. Related video above: Hawaii's Kilauea volcano spews lava ...

About 2 hours from San Francisco, 3 hours from Oakland, and 5 hours from Los Angeles sits Pinnacles National Park. This ...

Sequoia, Kings Canyon, Yosemite National Park, and Lassen Volcanic National Park are all ... that this park has much more to ...