Stock Photo: REFORESTATION, AUSTRALIA. Western Australia, Darling Range, Jarrahdale Mine, vicinity Perth. Reforestation of bauxite mines by Alcoa of Australia. Topsoil being spread on mined areas. . When the bauxite has been removed, the land is reshaped to blend in its surrounding forest. Contour banks, dykes and specially prepared waterways are built to control run-off and soil erosion. Finally, topsoil is spread and seed supplied.