"The purpose of this report is to present the results of a condition survey performed at Grand Forks Air Force Base (GFAFB), North Dakota, during 18-22 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost action to the pavement facilities" (p. 1).

The purpose of this report is to present the results of a condition survey performed at Minot Air Force Base (MAFB), North Dakota, during 11-15 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost action to the pavement facilities.

From introduction: This is a progress report on regional stratigraphic and paleontologic studies of the Upper Cretaceous Montana Group and equivalent rocks in the northern part of the western interior of the United States. It presents preliminary data on the positions of strandlines during a 14-m.y. (million year) span of the Late Cretaceous as well as our interpretations of the geologic history of this period.

Abstract: A digital simulation model was used to analyze regional ground-water flow in the Madison Group aquifer in the Powder River Basin and adjacent areas. Most recharge to the aquifer originates in or near the outcrop areas of the Madison in the Bighorn Mountains and Black Hills , and most discharge occurs through springs and wells. Results from the model calculations indicate that the total flow through the aquifer in the modeled areas was approximately 200 cubic feet per second (5.7 cubic metres per second). The aquifer can probably sustain increased ground-water withdrawals probably would significantly lower the potentiometric surface in the Madison aquifer in a large part of the basin. The digital model could better predict the effects of withdrawals if more accurate estimates of the storage coefficient, transmissivity, and leakance could be obtained.

The following report is the first in a series of volumes presenting data recorded during the months of August and September, 1978, from a radiometric and magnetic survey taken in four quadrangles between eastern Wyoming, North and South Dakota, and southern Montana (Newcastle, Gillette and Ekalaka).

Appendices containing data on uranium availability to accompany a report on U.S. uranium resources Ekalaka Quadrangle in Montana.

Appendix containing field data and chemical analyses of ground and surface water samples to accompany a report on U.S. uranium resources in the Ekalaka Quadrangle in Montana, North Dakota, and South Dakota.

During the months of August and September, 1979, geoMetrics, Inc. collected 12,415 line miles of high sensitivity airborne radiometric and magnetic data in adjoining portions of South Dakota and Minnesota over seven 1 by 2 degree NTMS quadrangles (Thief River Falls, Grand Forks, Fargo, Milbank, Watertown, New Ulm, and St. Cloud). All radiometric and magnetic data were fully corrected and interpreted and are presented as eight volumes.

This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the River Falls quadrangle of Minnesota and North Dakota.

This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the Grand Forks quadrangle of Minnesota and North Dakota.

This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the Fargo quadrangle of Minnesota and North Dakota.

This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the Milbank quadrangle of South Dakota, North Dakota, and Minnesota.

The following report discusses the findings from the Red River Valley drilling project that began in early June, 1977 and completed in October.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Thief River Falls Quadrangle in Minnesota and North Dakota.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Milbank Quadrangle in the southwest Minnesota area.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Thief River Falls Quadrangle in Minnesota and North Dakota.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Grand Forks Quadrangle in Minnesota and North Dakota.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Milbank Quadrangle in the southwest Minnesota area.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Grand Forks Quadrangle in Minnesota and North Dakota.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Fargo Quadrangle in Minnesota and North Dakota.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Fargo Quadrangle in Minnesota and North Dakota.

This report follows the stratigraphic and environmental study of the Ludlow and Hell Creek Formations of southwestern North Dakota.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Ekalaka quadrangle in Montana, North Dakota, and South Dakota.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Ekalaka quadrangle in Montana, North Dakota, and South Dakota.