Principal facts and complete Bouguer gravity anomaly map for the west half of the Butte 1
By: by Jerry H. Hassemer ; United States Department of the Interior, Geological Survey.
Contributors: Geological Survey (U.S.)
Series: Open-file report -- 81-949.; Open-file report (Geological Survey (U.S.)) -- 81-949.
Publisher: The Survey
Published: 1981
Place of publication: [Reston, Va.?]
Language: eng
Format: Microform
Subjects: Gravity anomalies -- Montana.
Notes: Microfiche. [Denver, Colo. : U.S. Geological Survey, 1981?]. 2 microfiches ; 11 x 15 cm.

Bibliography: p. 4.