Guffey Bridge is an elegant Parker-through truss railroad bridge, the State’s largest artifact, and the site of the most spectacular train wreck in Idaho. The Boise, Nampa and Owyhee Railroad was organized by owner Col. Wm. Dewey to transport gold and silver ore from the Silver City mining district, and the bridge was constructed between May 14 and Sept. 7, 1897. At 450 tons, it was by all accounts the tallest bridge in the U.S. for many years, but the mines closed before it was completed. Although it never hauled ore, shipments of livestock and other agricultural products kept the railway busy until 1947, and more sheep and cattle crossed its span than any other bridge in the West. The BNO railway was taken over by the Idaho Northern Railway in 1907 and absorbed by the Oregon Short Line in 1912, then a subsidiary of the Union Pacific. After the line closed, the bridge was rescued from being sold for scrap, preserved with support from Canyon County Parks, Recreation and Waterways, the Idaho State Historical Society, Idaho Military, Idaho Fish and Game, the Idaho Heritage Trust, and the National Trust for Historical Preservation, entered in the National Register for Historic Places in 1978, and restored and re-dedicated on Sept. 7, 1991. It now serves as a pedestrian bridge for access to the trails and views of Snake River Canyon and Celebration Park.