General descriptive information about the central Duluth Complex maps including drillhole facts and descriptions of map units. Text only, no maps included.
The April 1971 edition of the Geological Society of Minnesota (GSM) newsletter included an updated map of the location of bronze geologic markers, an article on how agates form, and a story on the early history of society.
The April-May-June 1978 edition of the Geological Society of Minnesota (GSM) newsletter announced a new book called Rocky Roots, and included a report on a trip to southeastern Minnesota.
The April-May-June 1979 edition of the Geological Society of Minnesota (GSM) newsletter included the second part of a society history prepared for the 40th anniversary, along with regular meeting notices.
The April-June 1990 edition of the Geological Society of Minnesota (GSM) newsletter included the President's message from Walt Blowers, and a memorial to Dr. Henry Lepp.
The August-September-October 1985 edition of the Geological Society of Minnesota (GSM) newsletter reported on society affairs, including a highly successful state fair booth.
The August-September-October 1986 edition of the Geological Society of Minnesota (GSM) newsletter included the President's message from Warren Mitchell, and various society notices.
The August-September-October 1988 edition of the Geological Society of Minnesota (GSM) newsletter included society notices, and news of a conference at Gustavus Adolphus College featuring noted geologists.
The August-September-October 1989 edition of the Geological Society of Minnesota (GSM) newsletter included society notices, and news of the death of Dr. Harold E. Harbo.
The December 1970 edition of the Geological Society of Minnesota (GSM) newsletter included a message from President Sam Mayo, along with various meeting notices.
The December-January-February 1972-1973 edition of the Geological Society of Minnesota (GSM) newsletter included various meeting notices, and announced forthcoming publication of a Minnesota Geological Survey book on geology of Minnesota.
The December-January-February 1980-1981 edition of the Geological Society of Minnesota (GSM) newsletter reported on a field trip led by Gerry Webers on Cambrian and Ordovician strata of Minnesota, along with customary society notices.
The December-January-February 1981-1982 edition of the Geological Society of Minnesota (GSM) newsletter included part two of the Black Hills field trip report, and regular society notices.
The December-January-February 1982-1983 edition of the Geological Society of Minnesota (GSM) newsletter included society news, and a report on the field trip to the Mesabi Range, as well as a Memorial to Ruth Benson.
The December-January-February 1984-1985 edition of the Geological Society of Minnesota (GSM) newsletter included the President's message by George Johnson, and several society notices.
The Fall/Winter 1991 edition of the Geological Society of Minnesota (GSM) newsletter included society notices, and news that the Minnesota Geological Survey budget had been vetoed by the governor.