Mine reclamation

Mine reclamation is the process of creating useful landscapes that meet a variety of goals, typically creating productive ecosystems (or sometimes industrial or municipal land) from mined land. It includes all aspects of this work, including material placement, stabilizing, capping, regrading, placing cover soils, revegetation, and maintenance.

In the USA, Mine reclamation is a regular part of modern mining practice.[1]

From http://en.wikipedia.org/