San Juan Basin
Archaeological Society

Chapter of the Colorado
Archaeological Society
Lewis Mill

The San Juan Basin Archaeological Society... exploring, learning about, and preserving
archaeological, cultural, and historical resources in the Four Corners region since 1979.


About us


Field Trip and Activity Schedule



Reading List

John W. Sanders Internship Fund

Links and Volunteer Opportunities

PAAC Classes

Field Trip Archives

Club Business

Contact us

Membership Information

Why Join?

SJBAS offers organized year-round field trips, lectures, educational opportunities, fellowship and camaraderie. Members share an interest in exploring the significant archaeological, cultural and historical resources in the Four Corners Region. When you join SJBAS, you also become a member of the Colorado Archaeological Society (CAS). Non-members are welcome at our monthly meetings, but you must be a member of CAS to participate in field trips.

How to Join...

It is easy to join SJBAS - just print and complete the Membership Form; sign the membership form, Liability Waiver and Proper Etiquette forms; write a check to SJBAS for the appropriate amount; and mail the one-page Membership Form and your check to our Chapter Treasurer. Please keep your signed Liability Waiver and Proper Etiquette forms for your records. Follow this link to the Membership Form.


As Members of the Colorado Archaeological Society we pledge:

  • To uphold State and Federal Antiquities Laws.

  • To support policies and educational programs designed to protect our cultural heritage and our State’s antiquities.

  • To encourage protection and discourage exploitation of archaeological resources.

  • To encourage the study and recording of Colorado’s archaeology and cultural history. To take an active part by participating in field and laboratory work for the purpose of developing new and significant information about the past.

  • To respect the property rights of landowners.

  • To assist whenever possible, in locating, mapping and recording archaeological sites within Colorado using State Site Survey forms.

  • To respect the dignity of peoples whose cultural histories and spiritual practices are the subject of any investigation.

  • To support only scientifically conducted activities, and never participate in conduct involving dishonesty, deceit or misrepresentation about archaeological matters. To report vandalism.

  • To remember that cultural resources are non-renewable, and do not belong to you or me, but are ours to respect, to study and enjoy!

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