Pretty much everything that's light green on that map is forest that was cleared for farmland. By 1872, the eastern states had cleared 52% of their forests, mostly for agriculture. Habitat destruction is an underappreciated problem, but let's keep things in perspective. Those dirt access roads are narrow strips of forest, and they'll be quickly overgrown once they're abandoned.
Pretty much everything that's light green on that map is forest that was cleared for farmland. By 1872, the eastern states had cleared 52% of their forests, mostly for agriculture. Habitat destruction is an underappreciated problem, but let's keep things in perspective. Those dirt access roads are narrow strips of forest, and they'll be quickly overgrown once they're abandoned.