Half dome yosemite

Half Dome is an iconic rock formation in Yosemite National Park, California, standing 2,694 meters tall with a distinctive dome shape.

About this subject

Half Dome, located in Yosemite National Park in California, is one of the world's most recognizable rock formations. Composed primarily of granite, its distinctive dome shape was sculpted by glaciers over millions of years. The 600-meter-tall northwest face is a popular destination for experienced climbers, while the 23-kilometer trail to the summit attracts thousands of hikers annually.

The formation is part of the Sierra Nevada and its granite composition was formed during the Cretaceous period, about 90 million years ago. The name Half Dome was given by Josiah Whitney, leader of the California Geological Survey, in 1865. The vertical face is one of the most famous technical rock climbing challenges in the United States, with routes such as the Regular Northwest Face.

The area around Half Dome hosts diverse ecosystems, from giant sequoia forests to alpine meadows. The park receives more than 4 million visitors per year, many of whom seek the view from Half Dome's summit. The climb includes steep sections with steel cables to assist on the final stretch. A permit for the trail has been required since 2012 due to high demand and safety concerns.

Frequently Asked Questions

How tall is Half Dome exactly?

Half Dome is 2,694 meters (8,839 feet) above sea level, rising about 1,450 meters above the Yosemite Valley floor.

Do you need a permit to hike Half Dome?

Yes, since 2012 a permit is required for the Half Dome trail, available through a lottery system on the Yosemite National Park website.

What does Half Dome mean?

The name describes its half-dome shape, resulting from differential glacial erosion that cut the original dome in half.