1968. Map of Existing Urbanization prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Scale 1:... Wallace, McHarg, Roberts and Todd.
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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.
1968. Map of Foundation Conditions prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Scale 1:... Wallace, McHarg, Roberts and Todd.
1968. Projection: Polar Stereographic Projection: Standard Parallel -80º14'; Series: USGS 1:250,000 Topographic Reconnaissance Series. United States Geological Survey.
1968. Powell, Richard L. Blue line print. 'Base prepared from Bloomington, Clear Creek, Stanford and Whitehall topographic quadrangles, U.S.G.S, by the Indiana Geological S...
1968. Chart of Generalized Geologic Section - Aquifers and Ground Water Movement prepared for the Metropolitan Council as a part of An Ecological Study f... Wallace, McHarg, Roberts and Todd.
1968. Chart of Geologic Units and Aquifers prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. ... Wallace, McHarg, Roberts and Todd.
1968. Chart of Geological Sections 1-6 prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Scal... Wallace, McHarg, Roberts and Todd.
1968. Chart of Geological Sections A-F prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Scal... Wallace, McHarg, Roberts and Todd.
1968. Machamer, J.F. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of 17th level of Zenith Mine, scale 1 i... Minnesota Geological Survey.