The Bishop occurrence is situated in the Duckling Creek area of the Swannell Ranges (Omineca Mountains), approximately 1.5 kilometres southeast of the Lorraine prospect (093N 002) and 60 kilometres northeast of Takla Landing.

The area is underlain by mesozonal plutonic rocks assigned to the Late Triassic to Early Cretaceous Hogem Intrusive Complex which have been emplaced into volcanic rocks of the Middle Triassic-Lower Jurassic Takla Group, east of the Pinchi fault zone. The plutonic rocks form an elongate batholith, extending from Chuchi Lake, north to the Mesilinka River. The structural setting of the batholith and the intruded Takla Group is one of vertical tectonics associated with graben development (Bulletin 70).

In the immediate area of the showing, buff grey coloured, equigranular, fine to medium-grained syenite is exposed as abundant angular subcrop boulders and massive ledges up to eight metres across. The rocks, which likely belong to the Middle Jurassic Duckling Creek Syenite Complex, a phase of the Hogem Intrusive Complex, are weakly foliated and are not strongly altered. Outcrops of quartz monzonite and pyroxenite have also been mapped in the area.

The syenite is well mineralized with fine-grained chalcopyrite and rare bornite that is uniformly distributed in the exposed rocks. Malachite is common along fractures and minor pyrite has also been observed. This mineralization is either hosted within a syenite dike striking 160 degrees (as outcrop suggests) or controlled by the east-southeast foliation, as is the case at the Lorraine deposit to the northwest.

Drillholes L08-121 and 128 (ca. 2008, Assessment Report 30584) tested an induced polarization (IP) chargeability response that represents the northwest extension of the Bishop zone. Hole 121 tested the IP response in an area previously tested by hole 04-75 which ended in chalcopyrite-bornite mineralization whereas hole 128 is a test between hole 121 and the last holes within the Bishop zone. Both holes intersected thick sequences of chalcopyrite, chalcopyrite+bornite and bornite mineralization. What became evident is the significance of post-mineralization grade destructive alteration. Drillhole L08-121 at 212 metres illustrated strong grey feldspar alteration with fine disseminated chalcopyrite and bornite mineralization cut by barren coarser albite-diopside-magnetite-pink feldspar-epidote alteration. Progressing downhole, at 233 metres, showed complete grade destructive alteration with barren albite-diopside-magnetite-pink feldspar-epidote which yielded less than 100 parts per million copper. The two holes have outlined a 200-300 metre wide area of chalcopyrite and bornite mineralization and successfully demonstrates the Bishop zone extends a minimum of 275 metres to the northwest and is still open to the northwest and downdip. The mineralization, however, has been diluted by post-mineralization grade destructive alteration and barren post-mineralization intrusions. There is a 300 metre gap of no drilling from hole L08-121 to the southeast edge of the Upper Main zone (093N 002); additional drilling is required to trace the Bishop zone to the northwest to see if it does merge with the Main zone or forms a second deeper panel as previously postulated. Drilling will be difficult in this area due to the steep topography (Assessment Report 30584).

The Bishop zone appears to be about 450 metres long by less than 200 metres in width. Grades are reported to be similar to those of the Lorraine deposit. The Bishop zone has been re-interpreted to be a separate mineralized panel located some distance below the Main zone panel of the Lorraine deposit. A drillhole under Copper Ridge suggests Bishop zone mineralization extends an additional 300 metres to the southeast and identifies potential for additional mineralization within a previously untested area. Additional work planned for early 2007 will examine whether the Bishop equivalent panel has been drill tested by any of the longer drillholes under the Lower Main and Main zones and the possibility the Bishop zone may correlate with mineralization intersected in two diamond drillholes in North Cirque approximately 800 metres away.

In 1998, G.R. Peatfield, Ph.D., P.Eng., computed a then-current Lorraine-Jajay resource for Lysander Gold Corporation (now Lysander Minerals Corporation). Measured and Indicated resources of the Bishop zone total 7.72 million tonnes grading 0.64 per cent copper and 0.07 gram per tonne gold; Inferred resources total 2.87 million tonnes grading 0.62 per cent copper and 0.05 gram per tonne gold (Press Release - Eastfield Resources Ltd., October 29, 2003).

In 1991, Kennecott Canada Inc. resumed management of the Lorraine property (093N 002) and embarked on a 12-hole (2392 metres) diamond drill program with nine holes in the Bishop zone (then known as the Lorraine Extension). Chip samples collected in 1991 on the adjacent Steele claim by BP Resources yielded up to 0.71 per cent copper and 0.33 gram per tonne gold across 8 metres (Assessment Report 21992, page 20). Two holes drilled to test the showing, however, failed to intersect significant mineralization at depth. The mineralization on the Steele is the southeast extension of the Bishop zone on the Lorraine claims. Kennecott followed with detailed rock sampling of the zone in 1993. In 1994, Lysander Gold Corporation optioned the Lorraine property from Kennecott. On the Bishop zone, they drilled seven holes in 1994, two holes in 1995, an unspecified number in 1996, and three holes in 1999. Additional geochemical surveys occurred in 1997, 1999 and 2000. In October 2000, Eastfield Resources Ltd. announced an agreement to option the Lorraine-Jajay property with a potential to gain ownership of 75 per cent of the property. Eastfield commenced drilling on the MacKenzie zone to the south in Fall 2000.

From June 28 to October 9, 2008, Teck Cominco Ltd. completed 6935 metres of NQ diamond drilling in 19 holes on the Lorraine-Jajay and Jan-Tam-Misty properties. Drilling tested integrated geophysical, geological and geochemical targets in the Boundary, All Alone Dome, Main/Bishop, TooGood and Page Bowl areas as well as several unnamed targets which were outlined by the 2007 exploration program. Please refer to the Lorraine (093N 002) occurrence for details that relate to the Bishop properties and for information on their common development history.

In 2010, Teck Resources Limited conducted a spectral and lithogeochemical sampling of historic drill core and soil sampling program on the Too Good and Bishop zones of the Lorraine-Jajay property. Soils were sampled for pH and copper, molybdenum, zinc, lead and gold with anomalous geochemical results within both sampled zones.