However , they were saved in part due to the efforts of Jan Coetzer , employee of Consolidated Diamond Mine ( CDM or DBCM ) , mining in part of Sperrgebiet .
Due in part to this competition for limited forage , the horses nearly became extinct .
They were saved in part due to the efforts of Jan Coetzer , employee of Consolidated Diamond Mine ( CDM or DBCM ) , mining in part of Sperrgebiet .
Due in part to this competition for limited forage , the horses nearly became extinct .