This web page provides map data (physical region boundary locations and defining characteristics, as well as region names and their descriptive data) for Michigan's 91 physiographic regions. The web interface enables the user to explore these regions at a variety of scales. In addition to the standard basemap backgrounds provided in Google Maps (topographic, imagery, streets, National Geographic, and terrain), the interface also supplies a 7.5-minute USGS topographic basemap, made semi-transparent over a 10-m resolution hillshaded DEM. This last basemap is listed in the pick list as "USA Topo Maps". The mapping project was done in a 2009 graduate-level seminar class in Geography at Michigan State University. Geography staff members Randall Schaetzl ( and David Lusch led the study and supervised the class. Class members (in alphabetical order) were Michael Bigsby, Helen Enander, Carolyn Fish, Claire Forgacs, Michael Luehmann, Abby Norton, Aaron Pollyea, Jennifer Powers, and Mark Steigmeyer. We thank Sarah AcMoody, Justin Booth and Matt Farra, of Remote Sensing & GIS (RS&GIS) at MSU for help in constructing the original the web page. The Department of Geography (RS&GIS) at MSU provided important logistical and travel support during the developmental phases of this mapping project, as did the National Science Foundation, in the form of a grant made to RJS. The physiographic map paper has been published in the journal Physical Geography, Vol. 34, pages 1-38 (2013) Access the paper. Summary map of Major Physiographic Regions .Comments and feedback are welcome.