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.


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Next SJBAS Meeting

Wednesday, February 14th 

7:00 p.m. at the Center of Southwest Studies

The next SJBAS meeting will be held on Wednesday, February 14th, at 7:00 p.m. in the Lyceum at the Center of Southwest Studies at Fort Lewis College. After a brief business meeting, Dr. Charles Riggs from FLC will present: "Fort Lewis College Archaeological Field School Excavations at the Bowthorpe Site (5MT 9399) in Southwest Colorado." A social will be held before the meeting at 6:30 p.m. in the CSWS foyer.

Charles R. Riggs, Associate Professor of Anthropology at Fort Lewis College, received his Ph.D. from the University of Arizona in 1999. He is a Registered Professional Archaeologist and his area of expertise is in Southwest archaeology with emphases on prehistoric architecture, migration, GIS-based approaches, public education, Native American collaboration, and cultural resource management. His experience in Southwest archaeology includes fieldwork or research throughout Arizona, and in southern California, New Mexico and Colorado.

Dr. Riggs teaches Introduction to Anthropology, Introduction to Archaeology, Prehistory of the Southwest, Topics in American Prehistory, Topics in Social Archaeology, Ancient Egypt, Legal and Ethical Issues in Anthropology, Research Methods in Anthropology, Advanced Studies in Southwest Archaeology, and Senior Seminar in Anthropology as part of his regular teaching rotation. In addition, he believes strongly in experiential education and regularly offers off-campus courses at the Pigg Site and in places like Chaco Canyon and Mesa Verde National Park.

SJBAS Special Lecture - February 7th 

At 7:00 p.m. in the Lyceum at the Center of Southwest Studies at Fort Lewis College, Jessica Crawford will present: “Mounds of the Lower Mississippi Valley.” Spanning a time period from 3000 to the AD 1600’s the Lower Mississippi Valley contains the oldest earthworks in North America. This presentation will highlight some of the better known and extensively researched mound sites in the Lower Mississippi Valley states of Arkansas, Louisiana and Mississippi. These states contain the oldest mounds and the highest concentration of earthworks of any region in the country.

Jessica Crawford is Southeast Regional Director for The Archaeological Conservancy, a national non-profit organization dedicated to the identification and preservation of the country’s most significant archaeological sites. From her office in Marks, Mississippi, she works within a seven-state area, managing approximately thirty Conservancy preserves, overseeing research projects on Conservancy property and acquiring additional properties for preservation with The Archaeological Conservancy. She is an archaeologist with a Master’s Degree in Anthropology from the University of Mississippi.

Center of Southwest Studies Special Event

January 27th - Western Fine Art "Roadshow" - Toh-Atin Gallery owner Jackson Clark, Jr. will evaluate the public's best Western fine art pieces before an audience. 1:00 - 2:00 p.m. CSWS gallery tour and talk on Western fine art collecting; 2:00 - 4:00 p.m. Roadshow, fine art evaluations.

SJBAS Quick References

SJBAS guide - Quick Reference Guide

SJBAS brochure - Brochure 2018

SJBAS newsletter - Moki Messenger - January 2018

CAS newsletter - The Surveyor - Fall 2017

PAAC Event Schedule - January to June 2018


Fort Lewis College

Life-Long Learning Lecture Series - Winter-Spring 2018 schedule


To submit material for the Moki and this website, please email it to

This site was last edited on January 12, 2018.


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