Despite its urban characteristics, the District of Columbia contains a vibrant and diverse natural environment, characterized by major rivers, parks, wetlands, and habitats. The close proximity of these natural features to the busy workplaces, commuter routes, and residences creates unique challenges to ensure their protection; but also greater opportunities to enjoy their benefits. In reality, our urban environment causes us to value our rivers, streams, trees, and green spaces even more, and prompts us to work to ensure their preservation and enhancement.