The Tide (High-Grade Pit) occurrence is located at an elevation of approximately 800 metres on an east facing slope, approximately 0.6 kilometre west of the Bowser River.

The area is composed of ash tuffs with lesser dust and lapilli tuffs and interbedded augite porphyry of the Lower Jurassic Unuk River Formation, Hazelton Group. A north trending extension of Lower Jurassic Summit Lake Stock hornblende granodiorite intrudes the volcanics. This intrusive lobe is from 300 to 500 metres wide, and seperates andesitic volcanics to the west from dacitic volcanics to the east (Open File 1987-22).

Mineralization occurs in the granodiorite and adjacent volcanics for over a 1-kilometre length. Narrow east trending shears, averaging 30 centimetres, cut both granodiorite and volcanics, and are mineralized with quartz, carbonate and/or sulphides including galena, sphalerite, and chalcopyrite. A selected sample of sheared granodiorite containing these sulphides, located near the northern limit of mineralization, assayed 19.55 grams per tonne gold and 28.11 grams per tonne silver. Stringers of galena up to 5 centimetres wide, striking at 20 degrees, occur in the volcanics just south of the intrusion. An unmineralized quartz stockwork cuts the volcanics in this area also. A 3-centimetre wide vein of galena and sphalerite was identified in the volcanics at the eastern contact of the intrusion near the southern limit of mineralization. A sample contained 170 grams per tonne gold and 1462 grams per tonne silver (Assessment Report 13072).

One diamond drill hole drilled in 1986 targetting the quartz stockwork. The hole cut mainly flow breccia containing fragments of andesitic and black tuff. Lamprophyre dykes were also encountered. The breccia is sparsely mineralized with pyrite, pyrrhotite, chalcopyrite and minor sphalerite. No significant assays were obtained (Assessment Report 15626).

One hole was drilled by Serengeti Resources Inc in 2004 to test the potential of copper-gold porphyry style mineralization hosted within the intrusive in the vicinity of the High-Grade Pit showing. The drill hole was designed to test the down dip continuity of the High-Grade vein. The hole collared into 13 metres of andesitic volcanics/volcaniclastics consisting mostly of thin-bedded andesitic tuffs with lesser andesitic, ash, lapilli, and fragmental tuff blocks (?) before intersecting the granodioritic feldspar-hornblende-quartz porphyry. All lithologies are strongly sericitized and variably overprinted by later Fe-carbonate alteration.

Two different styles of mineralization were encountered in the 2004 drillhole and are both present throughout the entire length of the drill hole. The first and most abundant style of mineralization consists of milky-white, quartz-molybdenite+/-pyrite+/-pyrrhotite+/-trace chalcopyrite+/-trace sphalerite veins. The quartz-molybdenite veins characteristically have: very low sulphide contents (<2 per cent); thicknesses <1 centimetre but up to about 15 centimetres; vein densities of 4-5 per metre (up to 15 per metre); and moderate chlorite alteration within and on vein margins. The second style of mineralization appears to post-date quartz-molybdenite veining and consists of pyrite+/-pyrrhotite+/-sphalerite (rare trace galena) mineralization as discrete veins or thin bands associated with narrow (<20 cm) quartz-carbonate-chlorite-pyrite shears. No high-grade mineralization was intersected in this drill hole. The hole averaged 0.08 g/t gold, 572 ppm copper, and 50 ppm molybdenum over its entire length of 163.01 metres, with maximum values reaching 0.97 gram per tonne gold, 0.6 per cent copper, 291 ppm molybdenum, 812 ppm lead and 0.24 per cent zinc (Assessment Report 27590). An increase in sulphide mineralization was observed at the projected intersection of the High Grade Vein (down hole depth of about 145 metres, down vein depth of 75 metres) but the mineralogy, vein morphology and grade did not bear any resemblance to the surface showing.

Work History

Most of the work history described below is derived from Assessment Reports 27590 and 28869 and the reader is referred to that source for further details.

The nearby East Gold Mine (104B 033), was worked between 1939 and 1965. Some work was thought to have been carried out on the Tide property at that time, including excavation of the High-Grade Pit (104B 129) beside Silver Creek, but no assessment work was recorded.

Northair Mines Ltd. staked their Tide claim to the south of the Electrum property in 1979 and the following year collected 151 silt samples, mainly from Eastgold Creek and the drainages west of the Eastgold property. A 1 by 2 metre pyrite boulder (the “66 Float Zone”) in Eastgold Creek assayed 22.6 gold per tonne gold (Assessment Report 8656). The following year, Northair expanded their claim group and extended silt sampling to the south. A trench was blasted in the Southpit zone, exposing three quartz-sulphide veins (Assessment Report 9687). More trenches were blasted on quartz-pyrite-arsenopyrite veins in the Northpit zone in 1982, but no work was filed for assessment.

In 1983, Northair formed a joint venture on the Tide property with Tenajon Silver Corporation and Newhawk Gold Mines Ltd. and prepared a detailed topographical map for survey control. The joint venture carried out geological mapping at higher elevations, covering the Northpit and Southpit zones (Assessment Report 11528). Six north-south lines of airborne EM/magnetics were run over the lower slopes of the property, showing several weak conductors (Assessment Report 11528). Silt samples were taken up Silver Creek and the upper parts of Eastgold Creek. Soil samples were taken along contours throughout the property and along east-west grid lines in the Southpit zone area, revealing extensive polymetallic geochemical anomalies (Assessment Report 11528).

The following year, the Tide joint venture concentrated their work at lower elevations in the Silver Creek area. Soil samples were collected at 50 metre intervals along north-south lines spaced 100 metres apart on the Silver Creek grid, revealing a large polymetallic soil anomaly. The High-Grade Pit was re-discovered and sampled, yielding 22.9 grams per tonne gold and 16,160 grams per tonne silver from a few centimetres of steel galena and sphalerite. A VLF-EM survey was run over the Silver Creek grid and the smaller Bowser grid to the south in the Bowser River floodplain. A weak conductor was indicated on the Silver Creek grid, in a talus patch with abundant galena-sphalerite float and soil samples up to 1770 parts per billion gold. A stronger conductor was identified on the Bowser Grid, trending northwest for 200 metres (Assessment Report 13072). Trenching was carried out in 1985, but no assessment was filed.

In 1986, the Tide joint venture drilled two core holes from road-accessible locations. Hole 86-1 was directed at the Bowser VLF conductor in an area where arsenopyrite-bearing fractures in granodiorite assayed up to 32.2 grams per tonne gold. The VLF conductor was explained by 2 metres of graphitic gouge at the contact between andesitic tuffs and an intrusive. Hole 86-2 was directed toward high copper, silver, and molybdenum soil geochemistry in the Silver Creek area, intersecting minor amounts of chalcopyrite and sphalerite. The holes were assayed only for gold and silver, returning generally low values throughout (Assessment Report 15410 and 15626).

Austral Pacific Gold Corporation optioned the Tide property in 1988. The Bowser grid and the southeastern portion of the Silver Creek grid were detailed by north-south lines spaced 25 metres apart for magnetic, Genie horizontal loop EM and induced polarization surveys. Mapping in the Silver Creek area revealed a “body of massive milky quartz which outcrops over an area of about 50 x 75 metres” and a 50 x 50 metre breccia of andesite tuff fragments in a chlorite-calcite-quartz-chalcopyrite-scheelite matrix (private report by Allen (1988) (as reported in Assessment Report 28869)). Parts of these grids were surveyed the following year with magnetics, VLF-EM and self-potential, but no work was filed for assessment purposes.

Claimstaker Resources Ltd acquired Austral Pacific’s option on the Tide property in 1990 and carried out extensive mapping at 1:1000 scale. The Susan and Anna quartz stockwork/breccia zones were discovered at the head of Eastgold Creek. Pulse-EM surveys were carried out over grids at the Northpit and the Susan/Anna zones. Four core holes were drilled in the Northpit and Bowser grid areas. Hole 90-1 was drilled under some of the better Northpit veins, intersecting two quartz-arsenopyrite veins with lower gold values. Three holes (90-2, -3 and -4) were targeted at a chargeability anomaly on the Bowser grid but were lost in overburden (Assessment Report 20771). A total of 137 rocks were collected on the property in 1990.

The claims were allowed to lapse in 1993 and were re-staked by Hemlo Gold Mines Inc. as the Bow-1 to -4 and Arrow claims. In 1994, Hemlo carried out property-wide mapping and took soil samples on reconnaissance contour and ridge/spur lines. They confirmed previous work and reported anomalous soil results above the Berendon Glacier to the southwest of prior sampling and north of Eastgold Creek (Assessment Report 23642). Further mapping and contour sampling in 1995 were confined to alpine areas. The 36 zone was discovered between the Northpit and Southpit zones, with a stockwork grading 5.62 grams per tonne gold across 7.1 metres (Assessment Report 24190). A total of 426 soils and 59 rock samples were collected on the property in in 1994 and 1995.

In 1996, Hemlo collected soil/talus samples from grids over the Northpit, 36 and Southpit zones and collected numerous grab and channel samples from them. These returned generally lower results than previously reported from the Northpit and Southpit zones, but at the 36 zone, 18 samples exceeded 1 grams per tonne gold over a 150 x 230 m area, open to the east and west (Assessment Report 24815). A total of 404 soil and 387 rock samples were collected from the Northpit, Southpit and 36 zone areas.

Rimfire purchased the property in 2001 from Newmont Canada Limited, which had acquired it from Hemlo via merger, and carried out mapping, prospecting and silt and rock sampling in September of that year (Awmack (2001) as reported in Assessment Report 28869)). The exploration program focused on assessing previously reported zones of mineralization and resulted in the discovery of narrow high-grade vein mineralization in the Arrow zone. A total of 1 soil, 75 rock and 4 stream silt samples were collected from the Silver Creek, Northpit, Southpit and 36 zone areas. A sample (51096) from the High-Grade Pit zone assayed 40.45 grams per tonne gold, 8733 grams per tonne silver, 0.304 per cent copper, 9.16 per cent lead and 20.60 per cent zinc over 0.17 metre (Heffernan, R.S. (2006-11-15): Summary Report on the Tide Project).

Serengeti Resources Inc. optioned the Tide property from Rimfire in 2003 and conducted two stages of exploration in 2004 (Assessment Report 27590). The first phase (July) consisted of mapping, soil sampling and prospecting from a series of helicopter supported fly camps and was focused at the lower elevations of the east side of Tide Mountain where previous coverage was poor. This work was followed up by a fall drill program that totalled 589 metres in four drill holes.

Surface work in 2004 was successful in discovering very high-grade gold-silver mineralization at the 52 zone (assays up to 593 grams per tonne gold and 14708 grams per tonne silver across 50 centimetres); discovering a new zone of sulphide mineralization (Brown Bear Zone) with values up to 6.71 grams per tonne gold, 771 grams per tonne silver, 1545 ppm Bi, 1.39 per cent lead and 1.24 per cent zinc; defining the Summit Sill soil anomaly (a 2000 x 600 metre gold-in-soil anomaly exceeding 90 ppb that is cored by a zone of anomalous copper, molybdenum, and silver values) and; defining the North Grid soil anomalies (a 650 x 400 m area with greater than 90 ppb gold). Diamond drilling in 2004 targeted the Southpit, High Grade Pit (porphyry mineralization), 36, and Arrow zones (Assessment Report 27590). The first hole to test the 36 Zone (TIDE04-03) intersected 129.4 metres of 1.00 grams per tonne gold. A total of 854 soils 179 rock samples were collected from the Southpit, High Grade Pit, 36, Arrow, Brown Bear, 52 zones.

In 2005, Serengeti and Rimfire contracted Equity to manage and conduct exploration that included a helicopter-borne magnetic (mag) and time-domain electromagnetic (TDEM) geophysical survey (late April) and a helicopter supported trenching, mapping, soil sampling, prospecting, and diamond drilling campaign (July). Select samples (273917 and 273919) from the High-Gragde Pit zone yielded up to 14.15 grams per tonne gold, 2440 grams per tonne silver, 18.70 per cent lead and 0.91 per cent zinc (Heffernan, R.S. (2006-11-15): Summary Report on the Tide Project). Also at this time, four short holes on the 52 Zone confirmed the presence of veining, with the best intersection grading 4.21 grams per tonne gold across 1.84 metres. Four step-out holes on the 36 zone encountered similar but lower-grade mineralization then 2004 drilling, with the best hole grading 0.56 grams per tonne gold along its entire length of 210.9 metres (Assessment Report 28012). A total of 374 soils and 185 rock samples were collected from the 52, 36, Southpit, Northpit, Sweet 16 and Backside zones.

Exploration in 2006 by Rimfire Minerals and American Creek Resources Ltd. comprised geological mapping, fracture density surveying and channel sampling, carried out by Equity Engineering Ltd (Assessment Report 28869). Grid mapping was done in a series of north-south oriented lines across the 36 zone, by compass and GPS. In the Southpit and Northpit areas reconnaissance contour mapping was carried out due to extreme topography not allowing for a north-south grid. Channel and rock samples were collected 5 target zones from altered and mineralized outcrops, with the focus on the 36 and Northpit zones. A total of 75 channel samples were collected from the 36, Southpit, Northpit, Camp and Riptide zones. The Camp, Hoito and Riptides zone are in the Northpit area.

In 2007, a further program of rock sampling and diamond drilling was conducted with a total of eight drill holes, totalling 1834.96 metres, being completed. Five drill holes were completed on the 36 zone, two on the Northpit zone and a single drill hole was completed on the Riptide zone.