Walsenburg folio, Colorado
By: [By R. C. Hills]
Series: U.S. Geological Survey. Geologic atlas of the United States -- no. 68; Geologic atlas of the United States -- fol. 68
Publisher: U.S. Geological Survey
Published: 1900
Place of publication: Washington, D.C
Language: eng
Subjects: Geology; Maps
Notes: Cover title.