The Tippy Lake property is underlain by volcanic and sedimentary rocks of the Lower-Middle Jurassic Salmon River Formation, Lower Jurassic Betty Creek Formation and Upper Triassic-Lower Jurassic Unuk River Formation, all of the Hazelton Group. Numerous quartz veins are hosted in siltstone of the Salmon River Formation and are mineralized with argentiferous galena, sphalerite and chalcopyrite. A rock sample assayed 194.7 grams per tonne silver; the highest in situ rock assay was 789.26 grams per tonne silver (Assessment Report 18670). Significant silver-bearing samples were taken over 40 metres along the east to northeast side of a northerly flowing creek.

Kirkham (PD05) Direct Current Induced Polarization (DCIP) lines and Magnetotelluric (MT) sites were completed in 2016 directly on or just east of the Tippy Lake occurrence Assessment Report 36790).

WORK HISTORY.

In 1988, work by Wydmar Development Corporation on the Tippy Lake Property consisted of stream sediment sampling, rock geochemical sampling and prospecting. During the program 344 silt sediment samples and 82 rock geochemcal samples were collected. Only the Linda and Rea claims were, in part, south of Tippy Lake, with the other 11 Tippy Lake Property claims situated to the north.

In January 1990, a 37.6 line kilometer airborne reconnaissance magnetic and VLF-EM survey was conducted over the Stella, Rae, and Linda claims on behalf of Teuton Resources Corp. The VLF-EM response shows a number of nearly north-south, approximately-parallel conductors that intersect airphoto drainages and lineations at oblique angles (with the exception of conductor S4). A marked region of elevated magnetic susceptability corresponding to an area within previously mapped Betty Creek Formation was reported.

In 1991 Teuton Resources collected a total of 43 rock samples were collected on the Linda, Rae and Stella claims. Three of 43 rocks samples yielded anomalous values. According to Teuton, all 3 samples were taken from the pyritic rich "sedex unit" exposures on the south side of Tippy Lake. Linda claim sample GWR-60, from a rusty-weathered "sedex slate" with 3 per cent pyrite, graded 0.045 gram per tonne gold, 6 grams per tonne silver, 1 per cent lead, 1 per cent zinc (Assessment Report 21306).

In 2006 and 2007, Hathor Exploration Ltd. completed a 7228.7 line-kilometre airborne geophysical survey on the area as the Knip claims of the Iskut project. In 2008, Max Minerals Ltd. examined the property.

Prior to 2014, Pretium Resources put together a very large block of contiguous claims called the Bowser Property, stretching from Brucejack Lake to Bowser Lake and farther to the southwest.

In 2014, on behalf of Pretium Exploration on their Bowser property, an 1,885 line-kilometer magnetic and radiometric survey was flown at 400 meter line spacing. Due to inclement weather, only 350 line kilometers of 1TEM Time Domain Electromagnetics (TDEM) were flown (Assessment Report 36790).

In 2015, Pretium Exploration expanded the magnetometer and radiometric survey area to the east and south, as well as infilling specific block areas to 200 meter line spacing. A total of 1,139 kilometres of magnetics and radiometrics were completed. In 2015, the proposed 2014 1TEM survey blocks were also completed, and the 1TEM survey grid was extended to match the area covered by the 2015 magnetometer and radiometric grids, totaling 3,402 1TEM line kilometers flown that year. Follow-up work was to focus on areas where the resistivity and conductivity indicate alteration, and the conductive anomalies might indicate a massive sulphide bodies.

In 2016, Pretium Exploration initiated a 4 kilometre Magnetotelluric (MT) line starting in the Canoe Glacier valley, crossing over the toe of the Knipple Glacier and continuing on to Scott Creek. A Direct Current Induced Polarization (DCIP) was also completed, focusing on the Salmon River Quock Member sediments and the underlying volcanics at the Kirkham, Pipe Dream, Knipple Lake, and Cone zones. Ten DCIP lines, covering 23.5 kilometres with 19 MT sites, as well as 26 MT stations covering the Bowser Valley were completed. In order to expand the structural and lithological interpretation at KL Gossan and KL East Zones, where outcrop exposure was minimal, 24 more MT sites were surveyed. The results of this 2016 work included the identification of 55 zones of interest related to resolved anomalies over Cone Zone (5), Kirkham (18), Pipe Dream (21), regional MT Transect line (5) and Bowser infill MT area (6) (see Assessment Report 36790 for further information).

In 2016, Precision GeoSurveys Inc, on behalf of Pretium Exploration, completed a 1,400 line kilometer airborne magnetic and radiometric survey on the Bowser Property. The survey covered the southern end of the Bowser Property, as an irregular 24.7 by 23 kilometre block, with 200 meter line-spacing, flown north-south, and 2 kilometre tie lines. The purpose of the survey was to complete the magnetometer and radiometrics coverage over the entire Bowser Property claim area, as the northern extents of the property had previously been flown in 2014 and 2015. See Assessment Report 36793, Appendix III for Precision's,"Airborne Geophysical Survey Report", including 2014-2016 magnetic and radiometric maps.

In 2017, Pretium Exploration conducted grass roots prospecting, sampling and mapping on their Bowser property, mostly southwest and south of Bowser Lake. They collected 2901 rock and 429 silt samples (Assessment Reports 37435, 37443).

In 2018, Beyond the Brucejack mine area, Pretium continued to evaluate their contiguous surrounding 1250 square kilometre mineral claims. The company completed an 8000 metres drilling program along with mapping and prospecting. Detailed results are pending.

As of September 2019, two drills were testing the high-priority A6 Zone VMS target, 14 kilometres northeast of Brucejack Mine, a third drill targeted a VMS system at the Canoe Zone, and a fourth drill targeted an intrusion related gold system at the Koopa Zone. Drilling earlier in the summer also focused on the Tuck and Lilliane zones, both epithermal gold system targets. To date, approximately 15,300 meters have been drilled, with drilling expected to continue through the end of September (Pretium Resoucres Inc., News Release, September 16, 2019). Detailed results are pending publication. The Tippy Lake area was held by Pretium Resources as part of the Bowser property.