TY  - RPRT
TI  - Altitude of the top of the Madison Limestone in the Black Hills area, South Dakota
AU  - Janet M. Carter
AU  - Jack A. Redden
PY  - 1999
DO  - 10.3133/ha744d
UR  - https://pubs.usgs.gov/publication/ha744D
ID  - ha744D
ER  -