Hart, Giant sequoia in Kings Canyon National Park, California, US.

Hart is a giant sequoia in Redwood Mountain Grove, within Kings Canyon National Park and Giant Sequoia National Monument, Fresno County, California. Its trunk holds about 980 cubic metres of wood, making it the 25th largest giant sequoia known. It grows 37 m north of the slightly larger Roosevelt Tree, which measures 991.5 cubic metres.

Michael Hart discovered this tree in 1880, making it notable among California's giant sequoias of the 19th century. The tree became recognized as a remarkable specimen within this ancient forest community that has existed for millennia.

The tree is named for Michael Hart, who found it around 1880; the name is the main human story attached to it. It grows in Redwood Mountain Grove, the largest grove of giant sequoias in the world, which also holds the tallest tree of the species, an unnamed specimen 95 m high.

Visitors can reach this tree by hiking trails that wind through the sequoia grove with varying terrain and difficulty levels. You should prepare for uneven ground and potentially wet conditions, especially after rainfall or snow.

The Hart Tree is the 25th largest giant sequoia in the world, with a volume of about 980 cubic metres. It stands 37 metres north of the Roosevelt Tree, a slightly larger sequoia with a volume of 991.5 cubic metres. The tree was named for Michael Hart, who discovered it around 1880.