Holdings: The Portage Lake Volcanics (Middle Keweenawan) on Isle Royale, Michigan

Main Author:	Huber, N. King 1926-
Other Authors:	Geological Survey (U.S.),, United States. National Park Service.
Format:	eBook
Language:	English
Published:	Washington : United States Department of the Interior, Geological Survey, 1973.
Physical Description:	1 online resource (iv, C32 pages) : illustrations, map.
Series:	Geological Survey professional paper ; 754-C.
Subjects:	Geology -- Michigan -- Isle Royale. Geology, Stratigraphic -- Precambrian. Volcanic ash, tuff, etc. -- Michigan -- Isle Royale. Portage Lake Volcanics (Mich.)
Online Access:	https://purl.fdlp.gov/GPO/gpo88569

https://purl.fdlp.gov/GPO/gpo88569

Location	Call Number:	Status
CMU Gov Pub Electronic	I 19.16:754-C	Online