[Racine and Grand Rapids Quadrangles: Single Record Data Listings]

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Racine and Grand Rapids quadrangle in Wisconsin, Illinois, and Michigan.
Date: July 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library

[Racine and Grand Rapids Quadrangles: Average Record Data Listings]

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Racine and Grand Rapids quadrangles in Wisconsin, Illinois, and Michigan.
Date: July 1981
Creator: EG & G GeoMetrics
System: The UNT Digital Library