The Mal occurrence is located near the junction of an unnamed, Kliyul Creek tributary and Kliyul Creek. The showing occurs between the KC (094D 140) and Bruce (094D 013) occurrences. Refer to these occurrences for a summary of the regional geology.

Locally, the area is underlain by andesitic tuffs of the Upper Triassic Takla Group. These rocks are intruded by hornblende diorite, dioritic feldspar porphyry dykes and biotite hornblende monzonite porphyry phases of the Early Cretaceous Kliyul Creek body. Emplacement of the intrusive rocks appears to be controlled by a southeast trending splay of the Dortatelle fault (Assessment Report 13580). Alteration zones are formed where faults cut the andesitic rocks. The alteration minerals include quartz, sericite, chlorite, carbonate and pyrite.

The Mal occurrence consists of two malachite-stained veins which are approximately 800 metres apart. At the documented location, a quartz vein occurs in a feldspar diorite porphyry. This vein is stained with malachite and contains disseminated pyrite. A grab sample from this vein assayed 0.196 gram per tonne gold and 1.82 grams per tonne silver (Assessment Report 13580). The second vein is located to the south along Kliyul Creek.

In 1984, Golden Rule Resources, explored the potential of gold-bearing quartz veins on their KC claims which included Independence (094D 028) and Banjo (Bap) (094D 029) (Assessment Report 13580). Work carried out in 1984 consisted of reconnaissance rock and stream silt geochemical sampling, prospecting, geological mapping, and ground magnetometer surveying. They reported an extensive 70 degree striking, variably silicified, fracture zone hosting 0.2 metre to 1.3 metre-wide quartz veins in regions of intense fracturing and silicification.

In 1990, Gold Rule Resources staked the JO 1 to 8 and CRO 1 to 5 claims and carried out reconnaissance silt sampling and prospecting. Numerous gold/copper/molybdenum-instream silt anomalies were identified that warrant follow-up work. A total of 76 rocks and 174 stream silt samples were collected. Gold Rule reported several gold-bearing silt samples draining the Dortatelle Fault near the western end of the KLI claims (Assessment Report 21502).

In 1991, sampling was done in the area of this occurrence. On the Cro 2 claim, a sample of a quartz stringer cutting altered andesite assayed 0.294 gram per tonne gold and 0.2296 per cent copper (Assessment Report 21502). This is thought to be the Mal vein.

In 1992 Noranda carried out 1:5,000 scale geological and alteration mapping and in 1993, they drilled 6 reverse circulation holes on the Kliyul skarn zone (Assessment Report 23033) and followed up with an airborne magnetic, EM, and radiometric survey (Assessment Report 23379). This airborne survey also covered the Mal occurrence and about 24 other occurrences.

Also refer to Independence (094D 028), Banjo (BAP) (094D 029) and KC 1 (094D 180) for related geological and work history information.