The largest living tree by volume is also ... there were roughly 2 million acres of redwood trees in Northern California. These were primarily "old growth" redwoods, a term that refers to trees ...

The biggest of northern California’s giant redwood trees grow more than 250 ft. tall, with a circumference greater than 90 ft. at their base. The oldest have seen more than 3,000 years.

Trees grow tall and wide-crowned as a measure ... Michael Nichols photographed California’s giant redwoods for the October 2009 issue.

On a cutover California hillside ... some foresters call them the biggest "pest" in the redwoods. But bears became a problem only when companies began growing trees like a crop.