View of Marble Canyon as it approaches the Grand Canyon, photographed in 1911 by Emery Kolb; note the sheer canyon walls and narrow gorge. | Creator: Emery Kolb Collection | Date: 1911 | Source: Northern Arizona University, Cline Special Collections and Archives, Emery Kolb Collection http://archive.library.nau.edu/cdm/ref/collection/cpa/id/15488 | Rights: Northern Arizona UniversityDownload Original File
