Northern Arizona is home to the largest contiguous ponderosa pine forest in North America spanning the Apache-Sitgreaves, Coconino, Kaibab, and Tonto national forests. The Four Forests Restoration Initiative (4FRI) is a collaborative effort of government, private, and special interests. The collaborative aspires to thin one million acres across these national forests before more large, expensive wildfires, such as the Wallow and the Rodeo-Chediski, develop in the overgrown forest conditions now typical across the region
