The area prospected is shown in plan on Plate 2 and a locality map is given in Plate 1. The prospecting was done by geologists D.E. Gardner and N.O. Jones, and survey hands S.J. Quain of the geological party, and B. Brewster and E. Rigby of the geophysical party. In order to cover the area systematically, it was subdivided into small topographic units, bounded by such features as creeks and the crest of ridges. Each unit of the area was traversed by one or more members of the prospecting party, who used Geiger-counters or ratemeters to test shear zones and outcropping quartz veins for radio-activity. Prospects were examined by either of the two geologists, who also made general notes on the geology of each unit of the prospecting area. Twelve uranium prospects were discovered within an area 4 miles long by 1.25 miles wide in Cullen granite adjacent to the contact with Brocks Creek sediments. An additional prospect was previously known to occur there. They are all small, and judging from the surface counts, appear to be low in grade.