Longleaf forests once covered 92 million acres from Texas to Maryland to Florida. These grand old-growth pines were the "alpha tree" of the largest forest ecosystem in North America and have come to define the southern forest. But logging, suppression of fire, destruction by landowners, and a complex web of other factors reduced those forests so that longleaf is now found only on 3 million acres. Fortunately, the stately tree is enjoying a resurgence...