TY  - RPRT
TI  - Distribution of hydrogeologic units in the Black Hills area, South Dakota
AU  - Michael L. Strobel
AU  - Gregory J. Jarrell
AU  - J. Foster Sawyer
AU  - John R. Schleicher
AU  - Mark D. Fahrenbach
PY  - 1999
DO  - 10.3133/ha743
UR  - https://pubs.usgs.gov/publication/ha743
ID  - ha743
ER  -