Yosemite at 150

Early photos pivotal in Yosemite's preservation as national park

Yosemite at 150

American Indians share their Yosemite story

Yosemite at 150

Yosemite's 150th: Hundreds gather at giant sequoias to celebrate

Yosemite at 150

Video: Breathtaking views from Yosemite Falls Trail