The Columbia River Gorge National Scenic Area encompasses 292,500 acres, running from the mouth of the Sandy River to the mouth of the Deschutes River and spanning southern Washington and northern Oregon and is the largest national scenic area in the United States. The major waterfall of Wahkeena Creek may just be the most scenic waterfall along the historic Columbia Gorge Scenic Highway. Maple trees line along the cascading creek below the falls, framing the picturesque scene to its perfection. In the fall, maple trees, twisted pines, Oregon ash, cottonwoods and big firs add stunning touches of warm and vibrant colors to draw many visitors and photographers to capture its breath-taking beauty. Peak color season is between the mid of September to the end of October. You can enjoy the eighty mile drive along the Columbia River Gorge scenic route, or hiking, rafting, kayaking down the river.