The Great Loop [near Georgetown], Silver Plume, Colorado.

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

colorado railroad bridges georgetown great loop silver plume stereoscopic views great loop silver plume united states clear creek county gilpin county robert dennis collection of stereoscopic views ultra high resolution high resolution nature mountains mountain pass new york public library railway photo archive

1850 - 1930

New York Public Library

https://digitalcollections.nypl.org/

Creative Commons CC0 1.0 Universal Public Domain Dedication ("CCO 1.0 Dedication")