The Trophy occurrence is located on the northern facing slopes of an un-named tributary of Ursas Creek, approximately 2.1 kilometres north-northeast of the junction of Ursus and Thunderbird creeks.

The area is underlain by granitic rock of the Early to Middle Jurassic Island Plutonic Suite. These plutonic rocks vary in composition from gabbro to quartz monzonite but are mainly grano- diorite and quartz diorite. In the area of the Trophy occurrence quartz diorite is the dominant variety.

The Trophy vein, striking 070 degrees and dipping 80 degrees southeast, has been traced on both sides of a canyon for a horizontal distance of about 50 metres and a vertical distance of about 20 metres. The width of the vein varies from 15 to 40 centimetres.

The vein consists principally of quartz containing a small percentage of sulphides irregularly distributed. Gouge occurs along the walls of the vein and between plates of quartz giving the vein a banded appearance. The gouge bands are parallel to the wall and contain abundant sericite. Sulphide minerals occur as fine grains in the gouge bands and as small aggregates within the quartz. The sulphides consist of pyrite and lesser amounts of galena, sphalerite, and chalcopyrite. Free gold in small angular grains is commonly observed in the white quartz. A 24 centimetre sample taken across the vein assayed 10.29 grams per tonne gold (Bulletin 8, page 66).

In 1939 an adit was reported driven in a southerly direction from the western side of the canyon to crosscut the vein; some drifting was done on the vein. From the 1970's to 1990's, numerous exploration programs have centered on a series of quartz-gold occurrences in shear zones following Ursus Creek, 2 kilometres to the south. A full exploration history can be found in the Junction occurrence (MINFILE 092F 449).