'The Mountaineer,60 cubic yard shovel: the Mountaineer is the world's largest shovel; it is the largest unit of mobile land machinery ever constructed in this country. It will be used to remove earth and rock overburden, with a maximum average of 90 feet in depth (under favorable contour conditions, the machine will be able to go to a top maximum of 120 feet of overburden), from the 4 1/2 foot Pittsburgh coal seam in Eastern Ohio. Although the four large machines which Hanna has had in service for several years at its open-cut mines are among the largest ever built, they are not capable of removing overburden averaging as much as 90 feet in depth. The Mountaineer makes possible the recovery of millions of tons of coal not recoverable with the smaller machines.'
