The Laf showing is located on the eastern side of a steep south- facing creek gully near the north west end of Sugar Lake, approximately 60 kilometres east-northeast of Vernon.
The area is underlain by metamorphic rocks of the Proterozoic to Paleozoic Kootenay (Shuswap) Assemblage. High-grade metamorphic rocks consisting primarily of gneiss with minor quartzite are intruded by a fine to medium-grained diorite. There is evidence that the diorite is a sill capping the gneiss, with a thickness of 100 metres at the main showing. At a lesser showing at a lower elevation the sill is less than 1 metre thick.
Mineralized zones are marked by intense limonitic and goethitic gossans and occur at the gneiss-diorite contact. These zones vary from 3 to 9 metres in thickness and have a 310 metre length along a north westerly strike. The gneiss within the mineralized zone is very siliceous with some minor secondary quartz veins. Mineralization occurs as disseminated siliceous pods of up to 90 per cent massive sulphides. These pods are up to 1 by 2 metres in size. Pyrrhotite is the dominant sulphide with lesser amounts of chalcopyrite, pyrite, sphalerite and magnetite.
In 1987, a sample (4759) assayed 0.15 gram per tonne gold, 7.4 grams per tonne silver, 2.00 per cent copper and 1.50 per cent zinc, while other samples (4752) assayed up to 0.45 per cent gold (Assessment Report 16277).
In 1996, a 3.6- metre section assayed 2.16 per cent copper, 1.37 per cent zinc and 7.8 grams per tonne silver (EMPR Property File - Gerle Gold Ltd. (1997-01-01): Annual Report 1996 - Sugar Lake).
In 1986, two massive sulphide showings were discovered during reconnaissance exploration and the Laf and Laf III claims were staked. In 1987, Gerle Gold completed a program of geological mapping and rock and silt sampling. The Laf IV claim was staked in 1989. In 1990, a combined ground magnetometer and HLEM survey was completed on the claims. In 2006, a program of rock sampling and geological mapping was completed on the area as the Stonegate property.
In 2013, the area was prospected and rock sampled as the BC Sugar property. This work centred around graphite exploration.
