The MS 1-3 occurrence is located on the south side of Watson Bar Creek at approximately 1100 metres.

The region is underlain by mainly sedimentary rocks of the Lower Cretaceous Jackass Mountain Group, cut by several cross faults and splays of the Fraser fault. Intruding the Jackass Mountain Group are numerous dikes and small stocks of quartz feldspar porphyry.

Locally, a major fault, striking 110 degrees, is marked by siliceous breccias and quartz-calcite stock works. Quartz veins and siliceous replacements host disseminated to massive pyrite, arsenopyrite, sphalerite, galena and chalcopyrite. The massive sulphide veins range up to 0.5 metre wide.

The massive sulphide veins are reported to carry up to 25.7 grams per tonne gold (Assessment Report 13019).

In 1987, sampling of the MS1, MS2 and MS3 veins yielded:

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Sample       Vein     Width    Silver               Gold
 (No.)      (name)   (metres) (grams per tonne) (grams per tonne)
 1351         MS1      0.10     91.2                36.02
 1353         MS1      0.35     74.4                14.10
 1354         MS1      0.75      9.3                 6.17
 1357         MS1      0.40     21.3                10.50
 1358         MS1      1.22     12.0                 3.43
 1359         MS2      0.13     12.3                 9.98
 1408         MS2      0.15     26.8                 6.59
 1409         MS2      0.20     62.1                 5.11
 1361         MS3      0.18      6.2                 9.12
 1362         MS3      0.15     10.6                 5.11
--------------------------------------------------------------

(Assessment Report 16713)

The MS2 vein is located approximately 300 metres to the north east, of the MS1 vein, on Watson Bar Creek. The MS3 vein is located approximately 200 metres to the south east of the MS2 vein.

During 1983 through 1985, Utah Mines completed programs of geological mapping, geochemical sampling and an induced polarization survey on the area as the Mad claims. In 1987 and 1988, Southern Gold Resources completed programs of geological mapping and rock and soil sampling. In 1997 and 1998, First Point Capital, on the behalf of BHP Minerals, completed programs of rock, silt and soil sampling. In 2006 and 2007, Durfield Geological completed programs of geological mapping, geochemical sampling and an induced polarization survey.