TY  - RPRT
TI  - Maps showing geology, structure, and geophysics of the central Black Hills, South Dakota
AU  - Jack A. Redden
AU  - Ed DeWitt
PY  - 2008
DO  - 10.3133/sim2777
UR  - https://pubs.usgs.gov/publication/sim2777
ID  - sim2777
ER  -