The Twentymile Park district of the Yampa coal field, Routt County, Colorado /

Bibliographic Details
Main Author:	Campbell, Marius R. (Marius Robinson), 1858-1940 (Author)
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : Department of the Interior, United States Geological Survey, 1923.
Series:	Bulletin (Geological Survey (U.S.)) ; no. 748.
Subjects:	Geology, Economic > Colorado > Yampa. Mines and mineral resources > Colorado > Yampa. Coal > Colorado > Yampa. Coal. Colorado > Routt County.
Online Access:	https://purl.fdlp.gov/GPO/gpo60997

Description
Item Description:	Title from title screen (viewed June 26, 2014).
Physical Description:	1 online resource (iv, 82 pages, XIII pages of plates) : illustrations.
Bibliography:	Includes bibliographical references and index.