A geological survey to create a geological map or model. Geotech employs techniques from the traditional walk-over survey, studying outcrops and landforms, to intrusive methods, such as hand augering and machine-driven boreholes, to the use of geophysical techniques and remote sensing methods, such as aerial photography and satellite imagery.

Geotech apply Mineral exploration process to find the ore to mine.
Including prospecting, drilling, chemical analysis and ore evaluation.