It’s a giant sequoia, a member of Sequoiadendron giganteum, one of several surviving species of redwoods. The living crown (this one atop the General Sherman, at center) was once a distant mystery.

In the heart of California, the Sequoia and Kings Canyon National Parks are home to some of the tallest trees on the planet.

Giant sequoia trees are thriving in the UK, growing at a similar rate to those in California, the trees' native home. Reaching up to 90 metres in height, giant sequoias (Sequoiadendron giganteum ...

The great giants we associate with redwoods belong to the other two species: the giant sequoia (Sequoiadendron giganteum) and coast redwood (Sequoia sempervirens), both of which can top 300 feet ...

How do you conserve an ancient wedge of giant tree? With solvent ... Chelsea's team looked closely at the sequoia to monitor and document any changes to its condition. Some parts of the tree slice, ...