TY  - RPRT
TI  - Preliminary outcrop map, Rochford and vicinity, Black Hills, South Dakota, showing locations and values of samples analyzed selectively for Au, As, and Cu
AU  - R. V. McGehee
AU  - R. W. Bayley
AU  - Rickie White
PY  - 1968
DO  - 10.3133/ofr68171
UR  - https://pubs.usgs.gov/publication/ofr68171
ID  - ofr68171
ER  -