Dyson's Find is situated 1000 yards east-north-east of White's workings. A radiometric anomaly was discovered here in 1950 by geophysicist D.F. Dyson while traversing the sedimentary rocks between Giant's Reef to the south and the edge of Rum Jungle to the north. No uranium minerals were visible on the surface but costeaning revealed four lines of strong secondary uranium mineralisation. In 1950 the area was mapped by H.J. Ward on a scale of 50 feet to one inch. A prospecting shaft (No. 1 Shaft) was sunk to a depth of 54 feet on one of the uraniferous lodes and some costeaning carried out. In 1951 further mapping on a scale of 20 feet to one inch was done by the writer. Diamond drilling was carried out and a new shaft (No. 2) was sunk to 84 feet. A plan showing the surface geology and working and a section along coordinate N170 accompanies this report. [Geology, structure, mineralization, workings, diamond drilling, ore reserves, and prospecting recommendations are discussed].