The Trish 1 (Branch G8000) occurrence is located on a ridge south east of Gray Creek at an elevation of 500 metres, approximately 3.5 kilometres southwest of Fanny Bay.

The area is underlain by a persistent band, greater than 12 kilometres long, of stratified metavolcanic and metasedimentary rocks of the Upper Triassic Quatsino and Karmutsen formations (Vancouver Group). The band trends northwest and separates Jurassic to Cretaceous Coast Plutonic Complex rock of two different compositions, diorite and granodiorite.

Locally, a rusty granodiorite, exposed over vertical heights of 10 metres, hosts breccia zones healed with quartz, molybdenum and pyrite.

In 1992, a rock sample (JLP-92-32) assayed 0.99 gram per tonne gold, 3.6 grams per tonne silver, 0.177 per cent copper and 0.068 per cent molybdenum (Assessment Report 22515).

The area has been historically explored, since the late 1890’s, in conjunction with the nearby Doratha Morton (MINFILE 092K 023) and Alexandria (MINFILE 92K 028) gold mines.

The area was prospected as the Trish 1 claim of the Cordero property in 1991 and 1992 by Ripple Creek Resources. During 1997 through 2000, Thurlow Resources conducted exploration programs on the area, renamed the DM and Picton properties, on the HY, LO and FILL 2-19 claims. The programs consisted of soil sampling, rock sampling, and geological mapping. In 2008, Cuda Capital completed a 561.4 line-kilometre airborne magnetic survey on the area. In 2015, BRS Ventures Ltd. completed a program of prospecting, geological mapping, rock sampling and 12 short diamond drill holes, totalling 7.6 metres, on the Margurete property.