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Become a Member

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.

Individual Membership

$30 ($22 without Southwestern Lore quarterly publication)

Family Membership

$45 ($35 without Southwestern Lore quarterly publication)

Student Membership

$16 with a valid student ID

Member Benefits

Monthly Meetings

With lectures by noted professional and avocational archaeologists.

Quarterly Journal

Get the renowned CAS quarterly journal, Southwestern Lore, delivered to you.

Project Participation

Opportunities to participate in professionally supervised archaeological projects.

CAS Annual Meetings

Hosted by different chapters around the state.

Lifelong Connections

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

Quarterly Newsletter

The All Points Bulletin: filled with articles, upcoming events, and volunteer opportunities. Issued by email with links to regional events.

Field Trips

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

Volunteer Opportunities

Volunteer work trips and service projects.


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

Member Benefits

Join or Renew Your Membership

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 as listed at the top of this page. 

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.

Application Process
Renew Membersip
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