Chinchilla challenge: regulator to judge miner Gold Fields'' relocation of endangered herd A Chilean inquiry into whether attempts to move a herd of chinchillas to make way for a gold mine that harmed the endangered animals should be completed in the coming months, the environmental regulator''s head told Reuters. South Africa''s Gold Fields Ltd, which is building the $860 million Salaries Norte mine high in the Andes mountains, has been working with Chilean authorities since 2020 to relocate the chinchillas.