U.S. Geological Survey [15 minute series (topographic)] : Colorado / [published by] the Geological Survey ; Charles D. Walcott, director ; A.H. Thompson, geographer ; E.M. Douglas, topographer in charge ; topography by R.C. McKinney

Date : 1895

Type : Livre / Book

Langue / Language : anglais / English

Aspen (Colo.)

Pitkin county (Colo. ; comté)

Colorado (États-Unis)

Walcott, Charles Doolittle (1850-1927) (Directeur de publication / publishing director)

Thompson, Almon Harris (1839-1906) (Cartographe / cartographer)

Douglas, E.M. (Cartographe / cartographer)

Geological survey (États-Unis) (Editeur commercial / publisher)