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click on SEARCH to view a list of all titles that contain your entry. For
example, enter silver (or SILVER) to view all publications that contain the
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Abbreviations used to denote map series:
C, Coal Investigations
CP, Circum-Pacific Maps
GP, Geophysical Investigations Maps
GQ, Geologic Quadrangle Maps
HA, Hydrologic Investigations Atlases
I, Miscellaneous Investigations/Geologic Investigations
MF, Miscellaneous Field Studies
MR, Mineral Investigations Resources Maps
OC, Oil and Gas Charts
OM, Oil and Gas Maps
SG, State Geologic Maps