Map showing geology and sample localities and concentration of lead in nonmagnetic heavy-mineral concentrates from the Wallace 1⁰ x 2⁰ quadrangle, Montana and Idaho ; Map showing geology and sample localities and concentration of total lead in in in stream sediments from the Wallace 1⁰ x 2⁰ quadrangle, Montana and Idaho ; Map showing geology and sample localities and concentration of partially extractable lead in stream sediments from the Wallace 1⁰ x 2⁰ quadrangle, Montana [cartographic material]
Author:
Geological Survey (U.S.)
Publisher:
The Survey : [Books and Open-File Reports Section, distributor]
