TY  - RPRT
TI  - Delineating the Pierre Shale from geophysical surveys east and southeast of Ellsworth Air Force Base, South Dakota, 2021
AU  - Colton J. Medler
PY  - 2022
DO  - 10.3133/sim3497
UR  - https://pubs.usgs.gov/publication/sim3497
ID  - sim3497
ER  -