As a result of the field activities of the Bureau during 1953 regional geological maps have been prepared for the Rum Jungle district, the Katherine-Edith River district and the Coronation Hill-Goodparla district, which cover the Katherine, Lewin Springs and Mt. Todd 1 mile military sheets and portions of the Marrakai, Mt. Tolmer, Batchelor, Tumbling Waters, Goodparla North, Goodparla South and Mt. Evelyn sheets. Detailed geological and geophysical reports and plans have also been prepared for all known radioactive mineral prospects, costeaning and diamond drilling has been undertaken to test some of the prospects and inspectional reports have been made on practically all airborne scintillometer anomalies located during surveys in 1952, and on some of those found during 1953. Prospecting operations have also been undertaken. A summary of the activities of the Bureau during 1953 and the results achieved is given in the following pages, and further details can be obtained from reports mentioned in the list of references.