This US Geological Survey circular offers the idea of using 3-D geological maps as a foundation for understanding the geology of the Great Lakes region with the hopes of applying this knowledge to fundamental sustainable development issues concerning natural resources of the area. The circular represents the work of a coalition of State and Federal Geological Surveys which advocates the use of geological information on glacial deposits in the region to help influence land-use decisions in ways that make them more compatible with a sustainable development framework. This newly released, high-quality circular is available in two .pdf versions (72-dpi, 1.4 MB and 150-dpi, 3.9 MB), the latter of which is more suitable for printing.