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5.

7th congressional district of Indiana, 1972. indiana-university

1972. Boundaries of 7th Congressional District of Indiana in 1972 drawn on a copy of Counties and townships map, p. 10 of Kingsbury, Robert C., An atlas ...

10.

Abandoned railroads of Indiana. indiana-university

1960?. Pen and ink.; Base map: Geological Survey (U.S.). State of Indiana, Scale 1:500,000, Washington, D.C., 1950. Scale approximately 1:2,027,520.

11.

Academy Gletscher: Greenland university-of-minnesota

1953. Projection: Polar Stereographic Projection; Series: AMS C501 Greenland 1:250,000 Topographic Series.

16.

Aerial Photography: Dakota County, Minnesota, 1970 university-of-minnesota

1970. Dakota County. The 1970 Air Photo (September 11, 1970) of unknown origin was created by scanning enlargements and georeferencing them to their respective location...

19.

Aeromagnetic anomaly map of Minnesota, S-11 university-of-minnesota

1982. Chandler, Val W. Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airb...

20.

Aeromagnetic anomaly map of Minnesota, S-17 university-of-minnesota

1992. Chandler, Val W. Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airb...