Kings Canyon National Park is a National Park in the southern Sierra Nevada, east of Fresno, California. The park was established in 1940 and covers 461,901 acres (186,925 ha). It incorporated General Grant National Park, established in 1890 to protect the General Grant Grove of giant sequoias.
The park is north of and contiguous with Sequoia National Park; the two are administered by the National Park Service jointly.
Kings Canyon had been known to white settlers since the mid-19th century, but it was not until John Muir first visited in 1873 that the canyon began receiving attention. Muir was delighted at the canyon's similarity to Yosemite Valley, as it reinforced his theory regarding the origin of both valleys, which, though competing with Josiah Whitney's then-accepted theory that the spectacular mountain valleys were formed by earthquake action, Muir's theory later proved correct: that both valleys were carved by massive glaciers during the last Ice Age.