TY  - RPRT
TI  - Preliminary geologic map of the southern part of the Champion 7 1/2-minute quadrangle, Marquette County, Michigan
AU  - William F. Cannon
AU  - J. S. Klasner
PY  - 1975
DO  - 10.3133/ofr7510
UR  - https://pubs.usgs.gov/publication/ofr7510
ID  - ofr7510
ER  -