Joe S. Downey

• Geohydrology and ground-water geochemistry at a sub-arctic landfill, Fairbanks, Alaska
• Geohydrology of bedrock aquifers in the northern Great Plains in parts of Montana, North Dakota, South Dakota, and Wyoming
• Geohydrology of the Madison and associated aquifers in parts of Montana, North Dakota, South Dakota, and Wyoming
• Ground-water basic data for Griggs and Steele Counties, North Dakota
• Ground-water basic data: Nelson and Walsh Counties, North Dakota
• Ground-water resources of Griggs and Steele Counties, North Dakota
• Ground-water resources: Nelson and Walsh Counties, North Dakota
• Machine-readable data files from the Madison limestone and northern Great Plains regional aquifer system analysis projects, Montana, Nebraska, North Dakota, South Dakota, and Wyoming
• The regional aquifer system underlying the northern Great Plains in parts of Montana, North Dakota, South Dakota, and Wyoming--summary