The D & D occurrence is located about 3 kilometres west of the shoreline of Surprise Lake, approximately 32 kilometres northeast of the community of Atlin.

The area is underlain by alaskite of the Late Cretaceous Surprise Lake batholith (Surprise Lake Plutonic Suite) and locally by remnants of Upper Paleozoic cover rocks. A northeast trending, pale limonitic gossan contains a zone of quartz veinlets. One of the veins contains kasolite and occurs within a strong gougy fault zone trending 020 degrees. A 0.8 metre trench sample assayed 0.0032 per cent uranium (Assessment Report 7456).

In 1978, R.H. Seraphim Engineering Limited, on behalf of Wyoming Mineral Corporation, initiated a reconnaissance uranium exploration program in the Atlin area. The program included prospecting with geiger counters and spectrometers, and limited geological and geochemical surveys around the Surprise Lake batholith. The program was partly in response to the uranium reconnaissance geochemical survey carried out by the provincial and federal governments in 1977. The D & D mineral claims were staked after the government data release, and prospected during 1978 and 1979. The 1978 work resulted in the discovery of a narrow quartz vein with kasolite and other secondary minerals. Follow-up work in 1979 indicated that this quartz vein is part of a larger zone of veining and fracturing in the alaskite which is marked by a pale limonitic gossan. Geological, radiometric, and geochemical work as well as trenching in 1979 failed to indicate mineralized extensions to the quartz vein, or other mineralized areas.

In 2006, Aldershot Resources Ltd. carried out a spectral analysis program on an area covering several occurrences (D & D, Ira 6 (104N 109), Mistake (104N 107), Ira (104N 110), Ira 5 (104N 088) and Pato 1 (104N 106)). The program involved acquisition of satellite spectral data available from NASA, reconfiguring this data into a workable format, geo-referencing to TRIM map bases and extensive and rigorous classification of the data in search of indicators that might lead to the discovery of uranium mineralization.

In 2021, an airborne SkyTEM survey was conducted by Stuhini Exploration on the Ruby Creek property, which revealed a number of regional trends across the property.