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The Colorado Historical Society provides two ways to learn more about our historic markers:

1) Type in a keyword or name (for example “irrigation” or “Otto Mears”) or a location (a county or town name). The search will find any markers that match your request. The record will list marker title, installation date, marker type (bronze or wood for example), the text that appears on the marker, and more. Please note that text is currently available only for markers installed after 1995.

2) Click on the map to search for markers by county. This search will list all the markers in the county, along with information on their location, date of installation, and other facts.

Other Resources

• For more information on the historic marker topics, visit the Stephen H. Hart Library or its website. The Stephen H. Hart Library of the Colorado Historical Society has extensive book, manuscript, newspaper, and photo collections. You can search the collections in the on-line catalog (Hart Library Web Page ).


• For information about visiting the library, hours, and directions, go to (Hart Library Visitor Info ).


• More questions? Contact the Stephen H. Hart Library (Hart Library e-mail ).


• Many of the photos on our markers came from the collections of the Colorado Historical Society. To view some of these images, visit (Hart Library Photos ).


• The Denver Public Library’s Western History/Genealogy Department has a large collection of materials on Colorado and the West (DPL ).


• To search thousands of images from the Denver Public Library, the Colorado Historical Society, and the Denver Art Museum, visit the Photoswest site (Photoswest ).


• The Prospector search engine gives you access to 23 libraries that make up the Colorado Alliance of Research Libraries, including the holdings of the University of Colorado, Colorado State University, the University of Northern Colorado and the University of Denver (Prospector Link ).