The Spring Lake copper prospect is located 15 kilometres east-southeast of Lac La Hache, and is accesible via the Highway 97 and the 111 Mile Creek road (Assessment Report 23965).

The area is underlain by porphyritic quartz monzonitic to dioritic intrusive rocks of the Triassic to Jurassic Takomkane Batholith which intrudes andesitic to basaltic volcanic and sedimentary strata of the Upper Triassic Nicola Group. Pyrite, chalcopyrite, bornite, covellite and native copper are reported (Assessment Report 23965) to occur over a large area between Spring, Chub and Kelly Lakes, with the best copper values near a north-trending contact zone between Takomkane granodiorite and Nicola volcanic rocks. Local garnet-epidote skarn is present in some of the calcareous Nicola rocks.The copper mineralisation is associated with moderate to intense propylitic to potassic alteration, and locally skarnification in the calcareous Nicola rocks. Diamond drill hole S-95-3 intersected 21 metres grading 0.184 per cent copper, 0.03 grams per tonne gold and 1.0 grams per tonne silver in strongly magnetic quartz monzonite. Diamond drill hole S-95-4 intersected 15 metres grading 0.151 per cent copper, 0.08 grams per tonne gold and 1.0 grams per tonne silver in magnetite-bearing andesitic agglomerate.

The earliest recorded work resulted from the Geological Survey of Canada airborne magnetic survey in 1966, when a circular anomaly was detected over the area. In 1969, Royal Canadian Ventures Limited (Assessment Report 1834) staked the SL Group of claims, prepared 19 kilometres of grid and completed a soil geochemical survey (300 samples analysed for copper, silver, zinc and nickel), a ground magnetic and a VLF-EM survey over the property. In 1970, they completed a mercury vapour soil geochemical survey (Assessment Report 2378) and drilled one diamond drill hole totalling 67.1 metres (Geology Exploration and Mining 1971). In 1982, Guichon Explorco Limited, staked the TY1 claims and collected 72 soil samples from a flagged grid, and analysed them for copper, gold, zinc, silver and mercury. In 1983, they completed two induced polarization surveys - 2.35 line kilometres by Peter E. Walcott and Associates and 2.0 line kilometres by Phoenix Geophysics Limited. In 1994, GWR Resources Incorporated staked the the spring claims over property and completed a program of geological mapping, induced polarization surveying (18 line kilometres), magnetic surveying (12 kilometres), soil sampling (100 samples analysed for copper an gold) and a diamond drill program (12 holes totalling 1549 metres).

In 2001, the area was re-staked as the Summer claims by Cadre, and optioned to Erwin Resources Ltd. in 2003. Rio Minerals carried out soil, rock and silt geochemical surveys on behalf of Erwin (Assessment Report 32886).

In 2007, Cadre optioned the Summer claim to Candorado Operating Company Ltd. In the same year, an induced polarization geophysical survey was carried out over part of the Summer claim, by Peter E. Walcott & Associates Limited, on contract to Candorado (Assessment Report 32886).

Also in 2007, a geochemical survey completed the collection and analysis of 1009 soil samples. The soil grid consisted of 28 east-west lines at 100-metre spacing, with samples collected along the lines at 25-metre intervals. In addition, the property was geologically mapped at a scale of 1:20 ,000 and 17 rock samples were collected at outcrop and subcrop locations. Two copper-in-soil anomalies were delineated (Assessment Report 29394).

In 2011, a geophysical survey was conducted to help define the location and extent of the copper-gold porphyry-type mineralization on the Spring Lake and Timothy

occurrences and the area between the two occurrences. The following conclusions were made: Four first-priority geophysical targets were generated, two on Line 1 at

stations 650E (105 metres depth) and 1000E (180 metres depth)(Assessment Report 32886).