1910. Ehrman-Solberg, Kevin, Petersen, Penny, Mills, Marguerite, Delegard, Kirsten, and Mattke, Ryan. This data was compiled by the Mapping Prejudice Project and shows the location of racial covenants recorded in Hennepin County between 1910 and 195... University of Minnesota.
1920. Chen, Wei and Levinson, David M. Illustrates the development of the highway network in the Twin Cities metropolitan region. GIS maps of the state highway network were created for 1... University of Minnesota.