The Oneonta Tunnel at the Historic Columbia River Highway in Oregon was filled with debris in 1948 and reopened in 2009
Oneonta tunnel carried the Historic Columbia River Highway, Multnomah Country, Oregon, through a rock outcropping immediately east of the mouth of Oneonta Gorge
Horsetail Falls along the Columbia River Gorge in Oregon, right next to the Historic Columbia River Highway plunges 176 feet.
