JEFFERSON COUNTY HISTORICAL SOCIETY
To protect, preserve, and promote the history of Jefferson County through collections, research, exhibits, education, and community programs.
About JEFFERSON COUNTY HISTORICAL SOCIETY
Founded in the early 1970s and currently operating under the public name Evergreen Mountain Area Historical Society (EMAHS), the organization collects, preserves, and interprets local history for Jefferson County, Colorado. It partners with Jefferson County Open Space to support and interpret the Hiwan Homestead Museum and maintains a public research library and regional collections.
EMAHS/JCHS is a registered 501(c)(3) nonprofit that runs museum operations, K–12 education programs (including field trips and Medlen School Days), public exhibits, walking/history tours, and research services. In the past 2–3 years the society has continued public programming and partnered with county open-space staff on Hiwan Museum updates and volunteer-centered revitalization efforts.
Notable achievements
Hiwan Homestead preserved and interpreted
Played a central role in saving the Hiwan Homestead, securing its preservation through partnership with Jefferson County Open Space and supporting its interpretation as a public museum.
National Register recognitions
Helped secure National Register of Historic Places recognition for Hiwan Homestead (1974) and has stewarded other historic assets such as the restored Medlen one-room schoolhouse.
Sustained public collections & research access
Built and maintained a publicly accessible regional research library, digitized photo galleries, and oral-history resources that support ongoing community research and programming.
At a glance
- Total assets
- $158K
- Annual revenue
- $14K
- Tax status
- 501(c)(3)Public charity
- EIN
- 23-7355962
- Location
- Evergreen, CO
- Website
- emahs.org
- On Mahalo since
- November 2025
Financial figures from the IRS Business Master File, the IRS’s registry of tax-exempt organizations.
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