Employing selective mining leonardite is surface mined in two-to-three-acre sections to the total depth of twenty feet. The leonardite is found in three layers between two layers of clay. Professional excavators remove and pile the top soil, subsoil and overburden separately.
Employees of Leonardite Products use a front end loader to remove the clay stringers and mine the leonardite. The leonardite is carried by dump truck to the processing plant approximately three miles from the mine. Generally mined between March and October, mined leonardite is stored in a stock pile on the processing plant grounds.
The ND Mine Permit, issued by the North Dakota Public Service Commission (PSC), is GRGR-0501. The PSC inspects our mine monthly and our records quarterly.
This is a Federal Mine #26-1460596
The Federal Lease is NDM 065329
The BLM division based out of Billings, MT inspects our mine quarterly.
The MSHA Mine ID # is 32-00652.
The MSHA name for the mine is Leonardite Products Mine and Mill. MSHA inspects our operation twice per year.