Back to the basics. Forests (inside, near, and far away from cities) can help cities both Improve and contribute to the SDGs Inner forests include street trees, trees and forests on private property, patches of native woodland, forested ravines and corridors, and so forth, found within city boundaries. Nearby forests are trees, woodlands, and forests in the watersheds surrounding cities. Faraway forests are substantial, intact, and remote forests that are most often located far outside a city’s boundary.