Draft environmental assessment for W.R. Grace vermiculite mine closure plan near Libby, MT
Subtitle: operating permit 00010
By: prepared by Department of State Lands, Hard Rock Bureau.
Publisher: The Bureau
Published: 1992
Place of publication: Helena, Mont
Language: eng
Subjects: Environmental impact analysis -- Montana -- Libby.; Mines and mineral resources -- Environmental aspects -- Montana -- Libby.; Vermiculite -- Montana -- Libby.
Other titles: W.R. Grace vermiculite mine closure plan near Libby, MT