Fort Raines (spelled "Rains" on interpretive signs) was a United States Army blockhouse built in October 1855 to protect the portage road around the Cascades Rapids. It is located on the Washington side of the Columbia River, west of the Bridge of the Gods, at the "middle cascades." It was abandoned by 1857. The interpretive sign at the former site states that the post was "damp and lonely." Fort Raines was named for Brigadier General Gabriel J. Raines, who created anti-personnel mines for the Confederacy.