Melt-water channel deposits are among the most important aquifers in south-western Minnesota, but permeable zones within the deposits are difficult to locate, interpretation of the depositional history of proglacial channel ...

The report area includes approximately 200,000 square miles in the southern part of the Williston basin of North Dakota, South Dakota, and eastern Mon- tana and in central Montana and north-central Wyoming. Devonian ...

The Minot area is in the north-central part of North Dakota and includes part of the Souris River valley. The region is covered by glacial drift of late Wisconsin age except in small areas where the Fort Union Formation ...