Correlation chart of lower and upper Cretaceous Blackleaf Formation, eastern Pioneer Mountains, southwestern Montana, to Drummond, central-western Montana /

Bibliographic Details
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Dyman, T. S.
Format:	Government Document Map
Language:	English
Published:	Reston, Va. : The Survey ; 1994.
Series:	Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-2478.
Subjects:	Geology, Stratigraphic > Cretaceous > Drawings. Stratigraphic correlation > Montana > Pioneer Mountains > Drawings. Blackleaf Formation (Mont.) > Drawings.

Description
Item Description:	Cartographic material.
Physical Description:	5 sections on 2 sheets ; sheets 101 x 137 cm., folded in envelope 30 x 24 cm. + text (15 pages : map ; 28 cm.)
Bibliography:	Text includes index map and bibliographical references (pages 12-14).