TY  - RPRT
TI  - Geology of Keweenawan Supergroup Rocks near the Porcupine Mountains, Ontonagon and Gogebic Counties, Michigan
AU  - William F. Cannon
AU  - Suzanne W. Nicholson
AU  - Cheryl A. Hedgman
AU  - Laurel G. Woodruff
AU  - Klaus J. Schul
PY  - 1992
UR  - https://pubs.usgs.gov/publication/70104183
ID  - 70104183
ER  -