Disposal of fine tailings

A method of disposal of slurries of fine tailings material comprising laying a porous drainage level on a subsurface between a leading edge and a trailing edge, construction of a bund upon the porous drainage level and having a front face spaced inwardly from the leading edge of the porous drainage level and a rear face substantially forwardly of the porous drainage level trailing edge for leaving a substantial portion of the porous drainage level exposed, forming a further porous drainage level over the rear face of the bund to be covered by said fine tailings, depositing the slurries of fine tailings in layers behind said bund and at least in part over the porous drainage levels and providing still further porous drainage levels between the layers in the region adjacent said bund and in contact with the further porous drainage level for draining liquid from the layers.