Gold mineralisation at Tower Hill is hosted within a moderately (35 - 50°) east-dipping quartz vein package adjacent to the contact of granite and strongly foliated ultramafic rocks. Quartz-gold vein lodes strike north to north-northwest with strike lengths of up to 600 m and widths from less than a metre to a vein package with a horizontal width of up to 50 m.

The mineralised domain was defined by quartz veining, the granite contact and structural controls as well as gold grade.

Quartz-gold vein lodes strike north to north-northwest and dip moderately (30-50o) east with strike lengths of up to 600 m and widths from less than 1m to a vein package with a horizontal width of up to 50m. Mineralisation has been defined over a 1.1km strike length and has been tested to a maximum depth of approximately 525m below surface.

The prefeasibility study into Tower Hill and Harbour Lights made significant headway during the year with resource definition drilling to inform our resource models. The study identified that open pit extraction was the best option for development. This enabled the issuing of a maiden open pit Mineral Resource for Tower Hill during the year, increasing our gold resources in the province by 600koz.

All Tower hill ore will be trucked to the Gwalia processing plant. The processing plant is located at St Barbara’s Leonora Operations and consists of a three stage crushing circuit and single stage milling circuit.

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