The Lucky Jack property is part of the Meridian property (082KNW064) and is situated on Lexington Mountain. It adjoins the Criterion-Oyster (082KNW065) and Cholla (082KNW143) claim groups on the southeast.

There are several veins on this property that have been prospected but the only significant development is confined to surface cuts and shallow underground workings which test the continuation of the 200-metre long Oyster vein. The vein ranges from 1 to 4.6 metres wide and consists mostly of quartz with bands of carbonaceous phyllite mineralized with pyrite. The vein has an average strike 145 degrees and dip 54 degrees northeast. Close to the line of the Sleve Namon and Mascotte claims the vein has been opened by a large cut from which ore was mined and processed in a small two-stamp mill from 1904 to 1908.

A crosscut driven through ore on the floor of the cut exposed a wide section of the vein. It dips 35 degrees northeast and is divided into three bands by narrow seams of graphitic schist. Sampling and assay results across 1.5 metres on the hanging wall section yielded 6.9 grams per tonne gold, and 33 grams per tonne silver. Results from 1.8 metres of the central section assayed 10.3 grams per tonne gold and 17.1 grams per tonne silver; while 0.9 metre across the footwall section assayed 28 grams per tonne gold and 33 grams per tonne silver. About 38 metres southeast of this old cut, and 30 metres below it, a crosscut was driven into the hill to the vein, which was then drifted along to the northwest for 12 metres. Near this point, results of a the 0.8 metre sample hanging wall section of the vein assayed 16.1 grams per tonne gold; the middle section across 0.85 metre assayed 0.3 gram per tonne gold; and the footwall section across 1.7 metres assayed 6.5 grams per tonne gold (Annual Report 1914, page 257).

Host rocks belong to the Broadview Formation of the Lower Paleozoic Lardeau Group.