An update of bentonite mining related reclamation problems in the northwestern states
By: submitted to Old West Regional Commission, prepared by S. Johnson, D. Hemmer, and R. Beck (Montana Department of State Lands)
Contributors: Beck, Ray; Hemmer, D. (Dennis); Montana. Department of State Lands; Old West Regional Commission
Publisher: [The Commission]
Published: 1979
Place of publication: [Billings, Mont.]
Language: eng
Number of pages: 21
Subjects: Revegetation; Reclamation of land; Bentonite
Notes: "Old West Regional Commission Grant No. 10570164."

"October 1979."

Cover title.