Upcoming Lectures

When: Thursday, February 9, 2022 at 7:00 pm

    • IN-PERSON: 2520 55th St, Boulder, CO 80301 
      *Please note that the door will be locked when you arrive. Please call or text the number listed at the door to be let into the building.”

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Cost: Free & Open to the Public


The Sand Creek Massacre: The Betrayal that Changed Cheyenne and Arapaho People Forever

Sam Bock

Banner showing teepee at Sand Creek Massacre site and announcement for the new exhibit

The Sand Creek Massacre was the deadliest day in Colorado history, and it changed Cheyenne and Arapaho people forever. History Colorado has been working with the descendants of the massacre’s survivors to tell the stories of that horrible day as they’ve been passed down for generations. The new narrative emphasizing Cheyenne and Arapaho tribal knowledge reveals the ongoing trauma, the living history, and continuing efforts to heal from and commemorate Sand Creek that have been largely hidden from view. This presentation from History Colorado’s lead exhibit developer for the Sand Creek Massacre project will examine the new narratives the Tribes wish to present as well as provide a look into the process of co-creating the exhibition with the three Cheyenne and Arapaho tribes.

Sam Bock is History Colorado‚Äôs publications director and managing editor of The Colorado Magazine. He served as lead exhibition developer for The Sand Creek Massacre: The Betrayal that Changed Cheyenne and Arapaho People Forever. His graduate work at CU Boulder focused on the intersections of environmental and Indigenous history in the American West. He is a fourth-generation Coloradan born and raised in Boulder.

Current Series Speakers:

March: Kim Biela on ceramics of Rio Blanco County, Colorado



January 2023: Harold Henke, PhD: The Metal Detector: As Useful a Tool as a Shovel or Trowel for the Historical Archaeologist

November 2022: Spencer Little: Unbelievably Deep: A Reanalysis of the Hells Midden Site (5MF16)

April 2022: Michael J. Prouty: “Through This Tangled Mass”: Identification and Recordation of Historical Trails in Colorado

February 2022: Chris Johnston: Projectile Points, Chronology, and the Oshara Tradition in the San Luis Valley

January 2022: Anna Cordova: Stewardship of Colorado Springs’ Archaeological Resources

December 2021: Devin Pettigrew, PhD: Lessons from Realistic Experiments with Archaeological Weapons

November 2021: Dr. Holly Norton: Archaeology for a Changing Colorado

May 2021: Claire Novotny, PhD: Games of Change and Fate: Patolli at the Ancient Maya Site of Gallon Jug

April 2021: Vicki Twinde-Javner: Excavation of the Lessard Site, Prairie du Chien, Wisconsin



Is there a particular speaker that you would like to see? Email the IPCAS Vice President to suggest a speaker.