TY  - RPRT
TI  - Geologic map of the Orwigsburg quadrangle, Schuylkill County, Pennsylvania
AU  - Gordon H. Wood
PY  - 1973
DO  - 10.3133/gq1029
UR  - https://pubs.usgs.gov/publication/gq1029
ID  - gq1029
ER  -