TY  - RPRT
TI  - Bedrock geologic map of the Egremont Quadrangle and adjacent areas, Berkshire County, Massachusetts, and Columbia County, New York
AU  - E-an Zen
AU  - N. M. Ratcliffe
PY  - 1971
DO  - 10.3133/i628
UR  - https://pubs.usgs.gov/publication/i628
ID  - i628
ER  -