Coal vein : a guided nature trail.

Bibliographic Details
Format:	Government Document eBook
Language:	English
Published:	[Washington, D.C.] : National Park Service, U.S. Department of the Interior, [2016?]
Subjects:	Trails > North Dakota > Theodore Roosevelt National Park. Outdoor recreation > North Dakota > Theodore Roosevelt National Park. Theodore Roosevelt National Park (N.D.)
Online Access:	https://purl.fdlp.gov/GPO/gpo73770 http://purl.fdlp.gov/GPO/gpo73770

Available Online