A FALCON® AGG survey in Hamersley Basin targeted hematite-goethite ore bodies within BIF units using gravity and magnetic data. Due to density and susceptibility contrasts, the system mapped ore bodies 300–1,200 m long, 30–100 m wide, and 200–400 m deep. Gravity highs coincided with magnetic lows, indicative of oxidized, dense ore. A prospectivity map, integrating gravity gradients and magnetic anomalies, distinguished mineralized BIF from barren zones. This method enabled rapid, accurate exploration in rugged terrain, overcoming limited access and magnetic remanence challenges.