The JM occurrence, discovered in 1988, is located 10 kilometres west of Mount McNamara and 10 kilometres northwest of Claw Mountain, about 266 kilometres northwest of the community of Germansen Landing.

The showing area is situated within a Mesozoic volcanic arc assemblage which lies along the eastern margin of the Intermontane Belt, a northwest-trending belt of Paleozoic to Tertiary sediments, volcanics and intrusions bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins.

Devonian-Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Stuhini Group andesite flows and pyroclastic rocks. These Stuhini rocks have been intruded by plutons and other bodies of the mainly granodiorite to quartz monzonite Early Jurassic Black Lake Suite and are in turn unconformably overlain by or faulted against Lower Jurassic calcalkaline volcanics of the Toodoggone Formation (Hazelton Group).

The dominant structures in the area are steeply dipping faults which define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high angle, northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

The JM showing is underlain by Stuhini Group trachyandesites, andesites and fragmental andesites. Minor disseminated chalcopyrite, chrysocolla and galena, associated with blebs and stringers of pyrite, occur sporadically in all the units over a 500 by 100 metre area. Weak argillic and propylitic alteration is widespread. Local areas of silicification with associated calcite veins occur in mineralized fragmental andesites. Limonite and malachite are well developed over the area. A sample of argillic, propylitic and siliceous limonitic trachyandesite with 10 per cent pyrite and 1 per cent chalcopyrite assayed 0.72 gram per tonne silver (sample CS-51, Assessment Report 18465). A 4-metre-wide limonitic trachyandesite with 5 per cent pyrite, 1 per cent chalcopyrite and trace malachite and chrysocolla, 500 metres to the south, assayed 1.02 grams per tonne silver (sample CS-49, Assessment Report 18465).

In 1988, on behalf of Prolific Resources Ltd., a field exploration program was completed on their 'Toodoggone' properties comprising the Stik, Fred, Adoog, Doog, Jim and Mike claims. The objective of the program was to locate and evaluate the gold potential of epithermal quartz breccia systems on the claims. Exploration consisted of extensive prospecting, geological mapping, lithogeochemical sampling (355 rock), hand trenching (1 trench, 19 metres), and soil sampling (722).