The Story of a Monument

March 18, 2015

Before a monument is made, granite for that monument has to be quarried from the earth. Granite comes from all over the world.  Granite is the world's most common mineral but getting down to it can be a challange. Quarry site preparation begins with modern equipment moving the topsoil from the granite ledge; this process is called "stripping". Stripping establishes the bounderies of the quarry by location the actual granite beneath the surface. When the shape and size of the quarry is established, a large area must be designated for waste rock or "grout". Quarries in Dakota have a yield of about 30% which mandate a alrge portion of the property be utilized for the grout pile. In early years the next step would be to identify the best location for the derrick (crane) footings.

 

Today quarries are designed to be drive-in quarries which allow access for large equipment to drive in and reach the quarry floor and drive out using an angled granite road. Lines for electricty, water and air are also installed to supply the drilling equipment and workers with necessary power. Government permits must be acquired and MSHA (Mining Safety & Health Administration) must declare the quarry work site in compliance

and a safe working environment prior to beginning the quarrying process .

Stay tuned for more on The story of a monument......

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