The Harri property has been home to several periods of exploration, dating as far back as the late 1950s. Early exploration was restricted to geophysical surveying, and was followed by targeted diamond drilling of EM and Mag anomalies. The majority of the 41 historic drill holes are located within the central part of the property, where overburden depths vary widely from 10 metres to more than 70 metres. Lithologies intersected by drilling are reported to be felsic to mafic volcanic rocks, various sedimentary rock units, and a few instances of mafic to ultramafic intrusions. Little significant mineralization was reported, except in a few holes which intersected zones of semi-massive sulfide. These sulfide zones returned anomalous copper values, with one sample returning 0.078% copper over 1.52m. The geological conditions support the potential for nickel-copper-PGE and VMS discoveries and potential for gold along structural zones and splays of the regional Sunday Lake deformation zone.