The Gil (PA) occurrence is located in the eastern headwaters of Gillanders Creek, approximately 7.2 kilometres southeast of its junction with the Ashnola River.

The area is underlain by mafic volcanics, argillaceous sediments, chert with argillite siltstone and limestone of the Carboniferous to Triassic Old Tom and Shoemaker formations and greenstone or greenschist metamorphic rocks of the Triassic Apex Mountain volcanics. The rocks are reported to be highly fractured and limonite-altered to depths of up to 162 metres. These have been intruded by hornblende diorites to quartz diorites of the Middle Jurassic Similkameen Batholith. Intrusive dike swarms have accompanied the Similkameen Batholith. Pervasive regional metamorphism is of upper greenschist to lower amphibolite facies. Superimposed on top of this is a later thermal contact metamorphism with a minimum vertical thickness of 790 metres (Assessment Report 11891).

At the occurrence, folding of these rocks is very complex with two small isoclinal folds and two large, broad anticlinal structures with axes striking 120 to 140 degrees and 10 to 30 degrees, respectively.

Locally, several types of mineralization are reported and all appear to be related to the Similkameen Batholith. These consist of disseminated sulphides in peripheral hornfelsed metasediments, metavolcanics and within intrusions; quartz veining with sulphides and garnet epidote skarn with sulphides. Hornfelsing is widespread and has affected at least 40 per cent of the Old Tom and Shoemaker rocks in the area. In order of abundance, sulphides include pyrite, arsenopyrite, pyrrhotite, sphalerite and chalcopyrite, ranging from 1 to 20 per cent. Disseminated pyrite, pyrrhotite, chalcopyrite and molybdenite, ranging from 1 to 10 per cent, occur within porphyritic intrusive units. Numerous 10- to 200-centimetre wide quartz veins, peripheral to intrusions, contain 1 to 5 per cent pyrite and molybdenite. Several skarn zones, ranging from epidote-rich silicified zones to massive garnet zones up to 5 metres wide, occur as replacement pods in limestone beds. . The predominant minerals are garnet, quartz, epidote and calcite. These skarns host 5 to 20 per cent blebs of scheelite, pyrrhotite, pyrite, arsenopyrite and chalcopyrite.

The skarn bodies are reported to be of small lateral dimensions and appear to be subvertically oriented and transgressive (Assessment Report 11891).

At the original PA zone, the skarn body is approximately 7.5 by 45.0 metres in size and strikes northwest. Chip sampling has yielded up to 0.52 per cent tungsten (0.65 per cent tungsten tri-oxide) over 5 metres (Assessment Report 11891).

In 1972, diamond drilling yielded up to 4.16 per cent tungsten tri-oxide over 0.15 metre in hole 72-4 and 0.64 per cent tungsten tri-oxide over 4.95 metres in hole 72-12 (Property File - Canadian Occidental Petroleum Ltd. [1976-01-04]: Joint Venture Proposal for Exploration of Gilly (Gil) Property, Osoyoos).

In 1975, a diamond drill hole (75-4) intersected an interbedded argillite and chert cut by quartz-pyrite veins with minor scheelite yielding 0.59 per cent tungsten tri-oxide over 1.5 metres, whereas two other holes (75-3 and 75-5) yielded 0.23 and 0.18 per cent tungsten tri-oxide over 2.4 and 1.5 metres, respectively (Property File - Canadian Occidental Petroleum Ltd. [1976-01-04]: Joint Venture Proposal for Exploration of Gilly (Gil) Property, Osoyoos). Also at this time, a select grab sample from the no.2 zone yielded 5.18 per cent tungsten tri-oxide (Property File - Canadian Occidental Petroleum Ltd. [1979-01-10]: Diamond Drilling on the GIL-LIG-Li-LG Claim Group).

In 1978, a diamond drill hole (GIL 7-78) intersected six skarn layers, varying from 0.6 to 2.5 metres thick, from a depth of 82.0 to 137.5 metres. Drillcore samples yielded up to 0.03 per cent tungsten, 0.20 per cent copper and 0.072 per cent molybdenum over 1.5 metres, respectively (Property File - Canadian Occidental Petroleum Ltd. [1979-01-10]: Diamond Drilling on the GIL-LIG-Li-LG Claim Group).

In 1987, a rock sample (87bk7) of hornfels material assayed 14.1 grams per tonne silver, 0.89 per cent copper and 0.014 per cent molybdenum (Property File - Minnova Inc. [1987-06-30]: Discovery Joint Venture Initial Progress Report, Period Ending June 30, 1987).

In 1988, a sample (BCS12339) of massive garnet skarn yielded 0.485 per cent tungsten tri-oxide, 32.8 grams per tonne silver, 0.10 per cent lead and 0.11 per cent zinc, whereas another sample (BCS12325) of intensely hornfelsed skarn assayed 31.5 grams per tonne silver and 0.62 per cent copper (Property File - Min-En Laboratories Ltd. [1988-10-11]: Certificate of Assay - File: 8-1427/P1 - Minnova Inc. - Gil).

In 1972, Union Carbide discovered a tungsten-bearing skarn showing during a follow up to several stream sediment anomalies and the PA claims were staked. The claim area was extensively explored between 1974 and 1983 by Canadian Occidental Petroleum Ltd. as the PA claim group. Exploration geological and geochemical programs were carried out in 1974 and 1975. This was followed up by surface diamond drilling in 1975, 1977 and 1978 with at least 14 drillholes, totalling 413 metres, on the PA 1 claim. Drilling was focused on molybdenite-copper-tungsten porphyry and tungsten-skarn mineralization on the ridge to the northwest.

During 1987 through 1990, Minnova Inc. completed programs of geochemical sampling and geological mapping on the area as the Gil claims.