1968. Map of Recreational Sites prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Scale 1:250... Wallace, McHarg, Roberts and Todd.
1968. Map of Relief prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Scale 1:250,000 Boundin... Wallace, McHarg, Roberts and Todd.
1968. Map of Slope prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Scale 1:250,000 Bounding... Wallace, McHarg, Roberts and Todd.
1968. Bounding Box (W,S,E,N): -93.9791,44.4981,-92.8021,45.361 Ecological Study for the Twin Cities Metropolitan Area. Wallace, McHarg, Roberts and Todd.
1929. United States. Bureau of Chemistry and Soils. Base map in part from U.S. Geological Survey sheets. 83 x 78 Centimeters Scale 1:62,500 Minnesota County Maps, Plat Books, and Atlases. Field Operations, Bureau of Chemistry and Soils (Washington, D.C.?).
1968. Map of Soils - Generalized for Agricultural Purposes prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Met... Wallace, McHarg, Roberts and Todd.
1968. Map of Soils - Generalized for Urban Purposes prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolit... Wallace, McHarg, Roberts and Todd.