View of the Denver & Rio Grande Railway train on the Highline, Silverton Branch, in the Canyon of the Rio Las Animas (Animas Gorge) La Plata County, Colorado. A narrow gauge engine pulls a sidecar and excursion car on a narrow rock ledge. Passengers and workmen stand on the tracks near the rail cars. Shows a beaver dam in the Animas River, a wooden railroad trestle and rock formations in the distance.