
Front Cover
- Cunning, Louise (Depicted)
- Frew, John (Artist)
Profile of the canyonland topography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
Plan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
Plan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
Plan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
Plan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
Plan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary