Flowing from sources such as the Delaware River watershed and the Catskill watershed, our New York City water supply depends upon the forests of the surrounding region. Trees collect, store, and filter water, playing an essential role in managing water quality and preventing stormwater runoff from overwhelming watersheds. Without the work of our forests, this runoff would erode riverbeds, destroy habitats, and deposit sediment into streams and rivers, degrading the water quality and, by extension, the quality of life for all living beings in the region. Just as we rely on these trees for our most essential needs, the forests also require our careful care and management.