Preliminary study of the uranium favorability of the Latah Formation, eastern Washington and northern Idaho

Rocks of the Latah Formation were examined to determine their favorability for sandstone-type uranium deposits. Although parts of the Latah Formation have some favorable characteristics for sandstone-type deposits, no uranium deposits are known in the formation and no uranium occurrences or radioactivity anomalies were found during the study. Samples from the formation contain an average of 1.2 ppM leachable U3O8 and 1.2 ppM equivalent uranium. On the basis of the above evidence, the formation is judged to be unfavorable for potential uranium resources