The General Grant tree in the Sequoia National park could provide enough
wood to build a town of fifty six-room houses. Sequoia trees live to be
more than 3,000 years old because the bark is virtually impervious to
harm from disease, insects, or even fire.

Every year a mature tree of three hundred years sends down a plethora of
millions of seeds, each the size of a pinhead; the odds, however, are
about a billion to one any of the seeds will develop into a giant tree.

By the way, the General Grant tree is over 270 feet tall and over 40
feet in diameter.