1968. Projection: Polar Stereographic Projection: Standard Parallel -71º; Series: USGS Sketch Maps. United States Geological Survey.
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1968. Paul Jacobs, Rebecca Barney, Len Kne, Ya Tao, and Dan Milz. A digitized version of Ian McHarg's original 1968 Ecological Study for the Twin Cities Metropolitan Area: Composite Intrinsic Suitability. These ma... U-Spatial.
1968. Ikola, R.J. Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between ... Minnesota Geological Survey.
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.
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.
1968. This map shows the riparian line along Berry's Creek for subdivision East Rutherford Industrial Park, Section A. Source map supplied by New Jersey ...
1968. Map of Sub-Surface Geological Features prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area... Wallace, McHarg, Roberts and Todd.
1968. Map of Suitability for Extraction prepared for the Metropolitan Council as a part of An Ecological Study for the Twin-Cities Metropolitan Area. Sca... Wallace, McHarg, Roberts and Todd.