U.S. Dept. of the Interior, U.S. Geological Survey,
Lucchitta, Ivo.
Geological Survey (U.S.)
Quaternary geology of the Granite Park area, Grand Canyon, Arizona aggradation-downcutting cycles, calibration of soils stages, and response of fluvial system to volcanic activity
Quaternary geology of the Granite Park area, Grand Canyon, Arizona aggradation-downcutting cycles, calibration of soils stages, and response of fluvial system to volcanic activity
Quaternary geology of the Granite Park area, Grand Canyon, Arizona