Email Record: Columbia River between the mouth of Willamette River and Vancouver, Wash. Letter from the Secretary of War, transmitting, with a letter from the Chief of Engineers, reports on preliminary examination and survey of Columbia River between the mouth of Willamette River and the City of Vancouver, Wash., with a view to determine whether the United States should maintain the channel if it is deepened to 25 feet by the Port Commission of Vancouver, Wash.