TY  - RPRT
TI  - Hydrology of the Helena area bedrock, west-central Montana, 1993-98
AU  - Joanna N. Thamke
AU  - Mitchell W. Reynolds
PY  - 2000
DO  - 10.3133/wri20004212
UR  - https://pubs.usgs.gov/publication/wri20004212
ID  - wri20004212
ER  -