The Four Forest Restoration Initiative (4FRI) is a collaborative effort to restore forest ecosystems on portions of four National Forests – Coconino, Kaibab, Apache-Sitgreaves, and Tonto – along the Mogollon Rim in northern Arizona. Ponderosa pine forest stretches almost continuously from the south rim of the Grand Canyon, across the Mogollon Rim, to the White Mountains in eastern Arizona. Unfortunately, these forests have been degraded by unsustainable historical land uses and fire exclusion. The result is overgrown forests with thin, unhealthy trees and the threat of unnaturally severe wildfire. The vision of 4FRI is restored forest ecosystems that support natural fire regimes, functioning populations of native plants and animals, and forests that pose little threat of destructive wildfire to thriving forest communities, as well as support sustainable forest industries that strengthen local economies while conserving natural resources and aesthetic values.