12-Mile RoadhouseClarence E. Mershon. The Columbia River Highway: From the Sea to the Wheat Fields of Eastern Oregon. Portland: Guardian Peaks Enterprises. 2006. 1st Edition. 74
The building housing the Twelve-Mile Roadhouse, located on the south side of Baseline Road (Stark Street) near the 12-mile post, was moved from the site of the Lewis and Clark Exposition in 1906. It burned in 1939.
Clarence E. Mershon. East of the Sandy: The Columbia River Highway. 5.