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Denver Chapter of the Colorado Archaeological Society

Celebrating 80+ Years of Colorado History and Community

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We bring together hobbyist and professional archaeologists to educate and preserve Colorado's rich history.

Educational Meetings

Join leading experts in Colorado archaeology live in person or virtually. Monthly meetings are open to all, and past lectures are always available on Youtube.

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Of Archaeological Interest

Expand your knowledge with access to archaeological databases and news sources across the country.

Learn and participate

Past Projects and Activities

From prehistoric sites to recent Colorado history, our chapter has been involved in hundreds of projects over nearly 88 years and counting.

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Become a DEN-CAS Member
Join us today to enjoy newsletters and invitations to special events.

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Upcoming Events and Announcements

DC-CAS Annual Members Night

Monday, December 8, 2025 – 5:00pm-7:00pm MT (Hybrid) Socializing and snacking begins 5:00pm MT Presentations begin 6:00pm MT Member’s Night : Good Company, Good Food, and Good Stories Join us for a fun time with Denver CAS members on Monday, December 8 th , 5-7 pm in the Anderson Room at the Englewood Public Library. Note: This a new location. Please see below for location details. Bring a snack or dessert to share . Non-members are welcome to join us, so please b

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Community Activities and Announcements (Ongoing)

This page is updated bi-weekly. Check back frequently for updates! (Latest Update - November 23, 2025) Upcoming Archaeology Tours, Events, Classes & Lectures: SAND CREEK MASSACRE VIGIL - MEMORIAL EVENT (DENVER, CO/IN PERSON): (New) November 29, 2025 (6:30pm-8:00pm) - This candlelight vigil will be held at the Denver Public Library, Central Library Branch, L1-Park View. Chris Tall Bear, a Southern Cheyenne descendant of Sand Creek and member of the Sand Creek Massacre Capit

2025 Free Tours Of Lamb Spring Archaeological Preserve

2025 tours of this important prehistoric archaeological site in Littleton, Colorado are now open for registration! Tours begin at 9:00am...