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 ...

Conservators applied solvent gel to the giant sequoia to draw the old varnish out The team then applied a special solvent gel to the surface that is on display. Chelsea explains, 'The solvent ...