0 a method of obtaining substances such as coal from the ground that involves removing the top layer of soil instead of digging deep holes underground --
Many companies employ both conventional strip mining and non-conventional in situ methods to extract the bitumen from the oil sands.
The main methods of surface mining are "open pit mining" and "strip mining".
Strip mining is only practical when the ore body to be excavated is relatively near the surface.
The ponds are the result of strip mining, or surface mining for iron ore or coal during the 1960s and 1970s.
The most common methods of surface mining involve open pit mining and strip mining.
Crumbling remains of the fort were reportedly still in existence in the early 1960s, but were destroyed by strip mining.
The park sits at the top of a former strip mining site and was opened in 2001.
Strip mining operations began in the 1950s and 1960s, with some of the deep mines and surface mines being remined in the 1980s.
