FIELD: mining industry. SUBSTANCE: invention, in particular, can be used when working off gold-bearing gravels and residual soils in highland areas. Ore body is exposed by systems of injection and evacuation excavations, including boreholes. They are positioned in top and bottom parts of ore body relative to direction of natural flow. Internal technological and external barrage wells are disposed, respectively, inside and beyond outline of ore body. Using barrage systems, one creates hydraulic screens and injects leaching solution. Productive fluid is trapped by technological excavations. To form leaching solution circuit zones and hydraulic screen zones, natural filtration flow is utilized. EFFECT: simplified process and increased productivity. 7 cl, 4 dwg
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