The Square Buttes coal field, Oliver and Mercer Counties, North Dakota | Geologic map of the Square Buttes coal field, Oliver and Mercer Counties, North Dakota | Pleistocene drift borders and diversion channels in and adjacent to the Square Buttes coal field, Oliver and Mercer Counties, North Dakota | Sections of coal beds in T. 141 N., RS. 83-87 W., Square Buttes coal field, Oliver and Mercer Counties, North Dakota | Sections of coal beds in T. 142 N., RS. 82-87 W., Square Buttes coal field, Oliver and Mercer Counties, North Dakota | Sections of coal beds in T. 143 N., RS. 82-87 W., Square Buttes coal field, Oliver and Mercer Counties, North Dakota | Sections of coal beds in T. 144 N., RS. 83-87 W., Square Buttes coal field, Oliver and Mercer Counties, North Dakota
1959
Johnson, William D. | Kunkel, Robert P. (Robert Paul)
Prepared as part of a program of the Department of the Interior for development of the Missouri River Basin.
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