Professional society organized for exchange of ideas and scientific data to promote better understanding of the geology of the region. Provides information about annual meetings with geological field trips and technical presentations.

A geologic photo tour around the perimeter of the lake, featuring bedrock and surficial deposits, ores, mining history, and minerals. Includes three different sets of captions for junior, intermediate, or advanced audiences.

Overview of 3.5 million years of geologic history of the region, including maps, descriptions of the major tectonic episodes, and photos of some rocks from Wisconsin.