1. Plains of Missoula River, Montana Creator: Chapman, R.H Published / Created: undated Call Number: WA Photos 271 Collection Title: Frederick Samuel Dellenbaugh collection of photographs and drawings of the Colorado River region. Container / Volume: Box 1 | Folder 20 Image Count: 2 Resource Type: Prints & Photographs Found in: Beinecke Rare Book and Manuscript Library > Plains of Missoula River, Montana