Includes historic photograph collections.

The Denver Public Library's Western History/Genealogy collection contains photographs, art, maps, architectural drawings and, other documents chronicling the history of Denver and the west.

This company has accumulated over 2000 original glass plates, negatives and original photographs of Colorado dating from around 1865 to 1940. Fee-based collection. This site includes photos by well known western photographers such as William Henry Jackson, J.B. Sturtevant (a.k.a. Rocky Mountain Joe), Louis McClure, in addition to many one of a kind images. Many of the photographs illustrate historic Boulder, Denver, and Aspen as well as over 50 other Colorado cities

"The key goals of The Commons on Flickr are to firstly show you hidden treasures in the world's public photography archives, and secondly to show how your input and knowledge can help make these collections even richer."

Use the "Search The Commons" search box to limit your search to results from participating institutions.

Source for public domain image and audiovisual files, with information about using the files legally and fairly.

A wide array of images from across the disciplines, but quality can be uneven and may not include attribution of original source. If you plan to post images found via Google on the Web or use them in a publication, ensure you have permissions from the original source.

Search millions of photographs from the LIFE photo archive, stretching from the 1750s to today.