Half Dome and El Capitan are rock formations located in which U.S. national park?

Yosemite National Park lies in the western Sierra Nevada of California. Designated a World Heritage Site in 1984, Yosemite is internationally recognized for its granite cliffs, waterfalls, clear streams, giant sequoia groves, lakes, mountains, meadows, glaciers, and biological diversity. Almost 95% of the park is designated wilderness.