The MGT showing is situated 24.5 kilometres east of Lytton at an elevation of approximately 1100 metres, on steep slopes above Shackan Creek. Much of the property is inaccessible by road, and where accessible, exposure is limited to thick cover sequences of the Spius Creek Formation
Regionally, the northwest-southeast trending Cretaceous Spences Bridge Group is part of the Southern Intermontane Tectonic Belt of the Canadian Cordillera. The Spences Bridge Group volcanics are faulted against older plutonic and related metamorphic rocks of the Triassic-Jurassic Mount Lytton Complex. The dominant rock types within the area are subaerial andesite flows and tuffs, overlain by amygdule-rich basaltic flows. Minor felsic flows occur within these intermediate and mafic rocks, along with some sandstone, shale and conglomerate units. Stratigraphy is intruded by abundant Late Triassic and/or Jurassic to Miocene plutons. Metamorphic assemblages consist of Cache Creek Complex mélanges and Bridge River Complex metamorphic and ultramafic rocks. Quaternary sediments occur as thick drifts along the main rivers and some of the larger creeks.
Locally, this showing comprises an area of locally intense argillic alteration several meters across, hosted in Spius Creek basalt, next to fine-grained Eocene felsic porphyry. The dominant rock types are thick stacks of basalt lava flows with associated dikes and breccias of the Spius Creek Formation. These provide a thick, extensive and continuous cover over the more varied Pimainus Formation pyroclastic sequences. Sedimentary rocks overlie an unconformity at the base of the Spius Creek Formation composed of massive to stacked coherent flows of weakly porphyritic to aphanitic, black to red andesite and basalt. The more massive flows observed may be hornblende or plagioclase porphyritic. Deposits are generally amygdaloidal, can be flow-banded and rarely show pipe vesicles. Rare tuffaceous interbeds include hematite-rich, oxidized ash and scoria-lapilli tuff. Amygdaloidal dikes intrude along vertical fractures through the resistive lava flows, but may flow laterally along unconsolidated tuff layers forming diffuse frothy appearing sills.
Mineralization comprises spotty chalcocite hosted in irregular discontinuous quartz veins. A core of moderately intense argillic alteration is surrounded by a much more pervasive and extensive propylitic alteration extending tens of metres into the local hostrocks. Structures and mineralization appear to be very localized, although there is significant talus cover in the area that may be hiding a lower extension of this alteration. This alteration accentuates the distinctly layered appearance of stacked flows as more permeable, and thus more oxidized, layers between coherent flows are rich in hematite. The combination of hematite-clay alteration can diffuse the boundaries between intruding sills and host rock such that they are indistinguishable (Assessment Report 28706).
A small rock slide (15 metres wide) has exposed this altered scarp on steep slopes above Shackan Creek, leading to the discovery of the showing. One rock sample (16846) collected in 2006 assayed 2.126 per cent copper and 247 parts per billion gold (Assessment Report 28706).
Prior to the 2006 field season there were a total of 15 rock and 52 silt samples taken from the surrounding area by Midland Recording Services Limited. A regional silt sampling program was contracted to Rio Minerals Limited during the summer of 2006 to test the remaining drainages on the property. Following this program, a prospecting and mapping campaign was undertaken to sample outcroppings of bedrock for anomalous metals. A series of detailed soil grids were then sampled and prospecting was carried out in areas deemed worthy of follow up. In total, 81 rock, 84 silt and 388 soil samples were collected in the area. The MGT showing was discovered during the 2006 exploration project.
In 2016, Seven Devils Exploration Ltd. examined the area as part of a regional reconnaissance program. In 2019, Goldblock Capital Inc. completed a program of geochemical (soil and rock) sampling and a 11 line-kilometre magnetometer and electromagnetic (VLF) survey on the area as the Copper Canyon property.
