Research Services

A research service is available for patrons who are unable to visit the library in person. The service is priced per hour of research time and includes up to 5 copied or scanned pages of relevant material. Due to staffing constraints, we are only able to devote up to 2 hours of research per request.

The first half-hour of research is complimentary. If further research is required, the following fees apply:

History Colorado Member (please note Member ID# in request) $20 per hour
Colorado Resident $30 per hour
Out-of-State Individual $40 per hour
Commercial $50 per hour


How to request research

Contact our Reference librarians at or 303-866-2305, or mail your request to:

Hart Research Library
History Colorado
1200 Broadway
Denver, CO 80203

Please include all pertinent information, including names, dates, and other relevant details of your topic.

If we can't find what you're looking for

We will contact you to describe our search and, where possible, suggest alternative resources. If your request will require a more extensive search than we can offer, we will send a list of researchers for hire with whom you can negotiate for a more detailed search.