The area is underlain by Upper Cretaceous Tip Top Hill andesite and dacitic volcanic rocks of the Francois Lake Group which have been intruded by porphyry plugs. Sulphide mineralization occurs in veinlets in fractured, sheared or altered zones striking north-south.
Locally, rocks exposed on the claims consist of tuffs, breccias, and andesitic porphyry. Sparse mineralization comprised of chalcopyrite, pyrite, tetrahedrite, galena, and sphalerite occurs as disseminations in the matrix of volcanic breccias and as stringers in shears and fissures. Two shear zones striking 325 degrees and 290 degrees contain mineralized stringers and sparse disseminations. In 1928, a selected sample of the breccia assayed trace gold, silver, 1.0 per cent zinc and nil lead (Minister of Mines Annual Report 1928, page 171).
The showing was discovered in 1928 by Helmer Larson, who staked the Snowstorm group of 4 claims. Trenching was reported.
In 1981 a combined magnetometer and geochemical survey was completed on the Now (1-4) claims by Mecca Minerals Ltd in the vicinity of the plotted locations of the New Discovery (093L 217) and Winn (093L 218) showings. The magnetometer survey has revealed several linear magnetic highs and lows that correspond to existing and proposed trenches. Several other trenches were reported to contain sulphides. The geochemical soil sampling program indicated weak, moderate and high anomalies in the investigated areas.
In 1984, a comprehensive magnetometer survey was completed on the Now (1-4) claims by Customer Mining Services on behalf of Mecca Minerals Ltd. The magnetometer survey revealed several linear magnetic highs and lows that correspond to existing and proposed trenches. Several of these trenches contain sulphide mineralization.
BonTerra Resources contracted Fugro to complete an airborne survey over the entire Symphony property in September of 2011. The survey covered the plotted areas of the Discovery (093L 217) and Winn (093L 218) showings, though precise locations for these showings are not known. A total of 308 line kilometres were flown along lines spaced one hundred metres apart. The helicopter-borne survey used a DIGHEM five frequency electromagnetic system, airborne high sensitivity magnetometer and a 256-channel gamma ray spectrometer. Interesting magnetic lows and resistivity highs were indicated that could reflect alteration zones or siliceous caps.
Refer to Winn (093L 018) for related information.