  During the months of June through October, 0000, Aero Service Division Western Geophysical Company of America conducted an airborne high sensitivity gamma-rayspectrometer and magnetometer survey over eleven (00) 0 0 x 0 0 NTMS quadrangles located in the states of Minnesota and Wisconsin and seven (0) 0 0 x 0 0 NTMS quadrangles in North and South Dakota. This report discusses the results obtained over the A