The Colorado Archaeological Society is a private, non-profit organization established in 1935, and currently includes 9 chapters located throughout the state. The membership is comprised of avocationalists, students, and professionals interested in archaeology as well as the discovery, documentation, and protection of Colorado’s historic and prehistoric cultural resources.

Membership is open to any person interested in archaeology.

Online Membership Application Process

Membership in the Colorado Archaeological Society is done through CAS' membership portal.  As you complete the online membership form, you will be selecting the Denver Chapter as the primary chapter to join.  While doing so you may optionally select and join a Secondary Chapter at a lesser membership fee.  (To assist you in choosing a Secondary Chapter to join, please visit our State CAS website which includes a map and description of the chapters.) 

Mail in Membership Application Process

You can also download and print the membership form, and send it in along with a check for your membership fee.

Membership Levels and Annual Dues

  • Individual Level - $30 ($22 without Southwestern Lore quarterly publication)

  • Family Level - $45 ($35 without Southwestern Lore quarterly publication)

  • Student - $16

Membership Renewal Process

Existing members should annually receive an email whereby they can renew their membership.


If you did not receive a renewal membership email, please reach out to us via email for assistance 

or download this membership form and mail your check together with the application to Denver Chapter CAS, PO Box 100190, Denver, CO 80250-0190.


Membership Benefits

  • Monthly meetings with lectures by noted professional and avocational archaeologists.

  • Quarterly newsletter, the All Points Bulletin, filled with articles, upcoming events, and volunteer opportunities. Issued by email with links to regional events.

  • The renowned CAS quarterly journal, Southwestern Lore.

  • Field trips to sites around Colorado and the western U.S.

  • Opportunities to participate in professionally supervised archaeological projects.

  • Volunteer work trips and service projects.

  • CAS Annual meetings (hosted by different chapters around the state).

  • Archaeological certification training (PAAC) offered in conjunction with History Colorado.

  • Camaraderie with other avocationalists, students, and professionals interested in archaeology and cultural preservation issues.