Ground-water-level monitoring and the importance of long-term water-level data by Taylor, Charles J.

Origin, extent, and thickness of quaternary geologic units in the Willamette Valley, Oregon

Ground-water flow in the Gulf Coast aquifer systems, south-central United States by Williamson, Alex K.

Geologic framework of the San Juan structural basin of New Mexico, Colorado, Arizona, and Utah, with emphasis on Triassic through Tertiary rocks by Craigg, Steven D.

Mineral deposit density an update

An interdisciplinary assessment of regional-scale nonpoint ground-water vulnerability theory and application by Bernknopf, Richard L. (Richard Lewis)

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Beyond the Golden Gate oceanography, geology, biology, and environmental issues in the Gulf of the Farallones

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Geologic field-trip guide to Steens Mountain Loop Road, Harney County, Oregon by Evans, James George 1938-

Geology and paleontology of five cores from Screven and Burke counties, eastern Georgia

Comparative water-quality assessment of the Hai He River basin in the People's Republic of China and three similar basins in the United States