“Upsilon Peak, Estes’ Park, Colorado”
(probably Ypsilon Mountain)
Detroit Photographic Co.
Library of Congress Photochrom Print Collection
The Photochrom Print Collection has almost 6,000 views of Europe and the Middle East and 500 views of North America. The richly colored images look like photographs but are actually ink-based photolithographs, usually 6.5 x 9 inches.