Pp. x, 524; numerous black-and-white illustrations, a few illustrations have blue highlights (geological maps, stratigraphic sections, photographs), 3 large folding color maps of North American hydrologic features and groundwater flow systems. Publisher's original color pictorial laminated cloth, 4to. This work presents 50 chapters divided into four Hydrologic Regions of North America, Comparative Hydrogeology, Groundwater and Geologic Processes and Outline for the Future. This volume is in the Decade of North American Geology Project series, it is Geology of North America volume O-2. Small ink name stamp of 'Rhodes', dated March 1989, on the front endpaper. No signs of use.