The Jolly occurrence is located on the Jolly 4 claim at 1219 metres elevation. The occurrence is 8.5 kilometres due east of the Cariboo-Amelia occurrence (082ESW020) of the historic Camp McKinney.
The oldest rocks on the Jolly 4 claim are Permian to Carboniferous Anarchist Group lithologies, dominantly greenstone. The protolith was probably fine grained andesite, dacite or basalt or fine-grained sediment. On the Jolly 4 claim these consist primarily of massive basalt flow and purple and green andesitic flow breccias. Alteration consists of variable amounts of chlorite, epidote, calcite and quartz. Other lithologies include basic intrusions and flows, serpentinite and metasediments including limestone, argillite, quartzite, chert and chert pebble conglomerate. The chert pebble conglomerate is best exposed along the south-central edge of the claim. These are overlain by Eocene Penticton Group volcanics and associated sediments. On the Jolly 4 claim these consist primarily of augite andesite porphyry flows, medium to coarse grained sandstone and arkosic sandstone. Other volcanics include andesite, dacite or phonolite flows, dikes, sills and breccia. Associated sediments include sandstone, siltstone, shale, and arkose and pebble conglomerate. Feldspar porphyry, trachyandesite and/or augite andesite dikes were also noted.
Exploration work in the vicinity of the Jolly occurrence has been conducted since 1983 by Edgewater Resources Ltd., Nexus Resource Corp. and Park Resources Ltd. on the Jolly claim itself. A preliminary exploration geochemical and geophysical program in 1984 disclosed several coincident anomalies up to 650 metres long and open-ended on the southern portion of the claim. Further surveys in 1985 revealed two anomalous areas of economic potential. The first was a 300 by 300 metre geochemical and electromagnetic anomaly in the southwest corner of the claim. An old trench (Trench 1) was discovered near the centre of this anomaly. The second was a correlative soil geochemistry anomaly associated with serpentinite. This anomaly also correlates well with an old trench (Trench 2). A 1987 soil geochemical program was focused on these two previously discovered anomalies.
Mineralization at Trench 1 is hosted in greenstone of the Anarchist Group. A select dump sample yielded 0.07 gram per tonne gold, 3 grams per tonne silver, 3.4 per cent copper and 2.3 per cent zinc (Assessment Report 16290). Dump mineralization included pyrite and chalcopyrite with malachite and azurite alteration. Mineralization at Trench 2 is hosted in strongly fractured and silicified black argillite with numerous re-healed quartz veinlets. Pyrite and chalcopyrite comprise mineralization. An assay of dump material from this trench yielded 3.4 grams per tonne gold (Assessment Report 16290). A 25-centimetre chip sample from the old trench yielded 0.55 gram per tonne gold, 50 grams per tonne silver and greater than 1 per cent lead (Assessment Report 16290).
During 2008 through 2012, Grizzly Discoveries Inc. completed programs of geochemical (rock, stream sediment and soil) sampling, geological mapping and airborne and ground geophysical surveys on the Dayton-Sidley area of the Greenwood Property.
