Report of investigations
By: North Dakota Geological Survey
Publisher: North Dakota Geological Survey
Published: 1949
Place of publication: Grand Forks, North Dakota
Language: eng
Subjects: Mines and mineral resources; Geology
Other titles: North Dakota Geological Survey report of investigations; Report of investigation
Work titles: Report of investigations (North Dakota Geological Survey)
Notes: Occasional issue published in map format.

Occasional number reissued or reprinted.

Beginning in 2001 some issues published only on CD-ROM format.