Search our online catalogs to locate items in our archival, photography, and artifact collections.
Collection guides, usually inventories or finding aids, are available for many collections.
Bibliographies and subject guides recommend research materials for topics ranging from Amache to the Works Progress Administration.
Full text of articles from The Colorado Magazine 1923-1980, featuring hundreds of stories about significant Colorado and Western people and events.
The Colorado Historic Newspapers Collection includes more than 500,000 digitized pages, representing 160+ individual newspaper titles published in Colorado from 1859 to 1923.
History Colorado holds Colorado city directories and phone books from the 19th century through the present. Search our index for available directories by city or year.
First-hand accounts of daily life in Colorado during the 19th and early 20th centuries.
OAHP's online architectural resources database for researchers and cultural resource professionals. Access to Compass is also available onsite at the Library & Research Center.
The Historic Markers Database provides text and location information for every historic marker in Colorado.
Other libraries, archives, and agencies that can help with Colorado history research.
Recommended sources of information on how to care for your family's treasures.
Resources to assist you in your family history research.
History Colorado Center
Denver, CO 80203
Email Librarian: cosearch(at)state.co.us
Email Photo Librarian: photos(at)state.co.us
Email Curators: curator(at)state.co.us
Hours: Wednesday - Saturday 10am - 2pm