The Black Hills Institute of Geological Research, Inc. (BHI) is a private corporation specializing in the excavation and preparation of fossils, as well as the sale of both original fossil material and museum-quality replicas.
Black Hills Institute of Geological Research, Inc. (BHI) adalah sebuah perusahaan swasta yang mengkhususkan diri dalam ekskavasi dan penyajian fosil, serta penjualan material fosil asli dan replika kualitas museum.