Geology of the western part of the Harold D. Roberts Tunnel, Colorado (Stations 0+00 to 690+00) /

Bibliographic Details
Main Authors:	Wahlstrom, Ernest E. (Ernest Eugene), 1909-2000 (Author), Hornback, V. Quentin (Author), Robinson, Charles Sherwood, 1920- (Author)
Format:	Government Document eBook
Language:	English
Published:	Washington : United States Department of the Interior, Geological Survey, 1981.
Series:	Geological Survey professional paper ; 831-C. Engineering geology of the Harold D. Roberts Tunnel, Colorado.
Subjects:	Engineering geology > Colorado > Harold D. Roberts Tunnel. Geology > Colorado > Harold D. Roberts Tunnel. Harold D. Roberts Tunnel (Colo.) Engineering geology. Geology. Colorado > Harold D. Roberts Tunnel.
Online Access:	https://purl.fdlp.gov/GPO/gpo90748

Description
Item Description:	Title from title screen (viewed October 6, 2014). "A description of the geology of and engineering practices used in the western part of the tunnel."
Physical Description:	1 online resource (vii, C58 pages) : illustrations, maps + 11 plates.
Bibliography:	Includes bibliographical references (page C58).