 The quality of its collection of oil paintings rivals that of the Denver Art Museum next door.The library's collection includes western landscape paintings by Albert Bierstadt, Frederic Remington, Charles Marion Russell, Thomas Moran and Otto Kuhler, as well as a portrait of Colorado historian and Denver Post writer Caroline Bancroft.The Western History Department holds the Otto Perry collection of railroad photographs, numbering 20,000 negatives from all parts of North America made available for viewing on the Internet.