Aerial view of Elk Falls suspension bridge on Vancouver Island, Canada

natural landscape nature water resources water watercourse nature reserve vegetation river wilderness biome waterfall riparian zone tree state park leaf stream national park ravine canyon landscape formation bridge autumn rock plant forest valdivian temperate rain forest drainage basin devil's bridge mountain bank tributary temperate broadleaf and mixed forest aerial photography riparian forest adventure valley old-growth forest water feature nonbuilding structure tropical and subtropical coniferous forests arroyo