Description The tallest known tree on earth is located in Redwood National Park in northern California. More than six hundred years old, it is approximately 379 feet tall--and still climbing! The tree in this book sprouted, flourished, and survived ecological threats for over six hundred years before being discovered by tall-tree researchers. The coast redwood tree provides a unique ecosystem for the many plants and animals in its tree canopy and managed to survive extensive deforestation by loggers nearby. Discovered in 2006, the tree's location is kept secret to protect it.