New Findings Show Magic Mountain Archaeological Site Is Older Than Originally Understood

 02/23/2019 | 12:03 PM 

DENVER – An archaeological site near Golden, Colorado, was occupied by humans thousands of years earlier than originally understood, according to new research conducted by the Denver Museum of Nature & Science in partnership with the Paleocultural Research Group (PCRG) and the University of Kansas Odyssey Archaeological Research Program (OARP).

The site, nicknamed Magic Mountain, served as a campground for nomadic hunter-gatherers for millennia. The Museum, PCRG and OARP have conducted fieldwork there for the past few summers. The site was also excavated in the 1950s and 1990s. Previous excavations and radiocarbon dates revealed that the oldest occupation was roughly 5,500 to 5,000 years ago.

New radiocarbon dates from buried soil and its associated artifacts date to 8,000 radiocarbon years BP, or roughly 9,000 calendar years ago. The samples were collected and dated by Dr. Rolfe Mandel, director of OARP.

“The new dates push back the earliest occupation of the site by several millennia, into a period about which we know very little. Only a few sites in the Denver Basin preserve archaeological deposits from that period,” said Dr. Mark Mitchell of PCRG and co-director of the Magic Mountain project. “The fact that we’ve identified an early Holocene and potentially Late Paleoindian occupation at Magic Mountain only magnifies the site’s importance for understanding the ancient history of the region. The new dates are also significant for our understanding of how the natural landscape around the site changed over time.”

Magic Mountain is a prime locale to better understand mobility patterns, seasonal use, and site activities by early humans. Recent excavations have unearthed numerous rock-filled hearths and roasting ovens that were possibly once inside structures, countless fragments of grinding stones, various projectile points and other stone tools, and a handful of gray cord-marked ceramic fragments. Dr. Michele Koons, curator of archaeology at the Museum and co-director of the project, is overseeing the cleaning, sorting, cataloging and analysis of the collected material.

“The new dates are very exciting. Our research up until now had mainly focused on the Early Ceramic Period (200 – 1000 CE) occupation at the site. These new dates open up a potential new avenue of inquiry into early Coloradan life along the Front Range,” said Koons.

For the last two summers, more than 3,000 members of the general public have attended free tours and participated in excavation activities at Magic Mountain. A grant from the Colorado State Historical Fund is supporting the project. The project will take a break from fieldwork in 2019 as analysis continues and helps form research questions for the future.

About the Denver Museum of Nature & Science
The Denver Museum of Nature & Science is the Rocky Mountain Region’s leading resource for informal science education. Our mission is to be catalyst and ignite the community’s passion for nature and science. The Museum envisions an empowered community that loves, understands, and protects our natural world. As such, a variety of engaging exhibits, discussions and activities help Museum visitors celebrate and understand the wonders of Colorado, Earth, and the universe. The Museum is located at 2001 Colorado Blvd., Denver, CO, 80205. To learn more about the Museum, visit dmns.org, or call 303-370-6000. Many of the Museum’s educational programs and exhibits are made possible in part by the citizens of the seven-county metro area through the Scientific & Cultural Facilities District. The Museum is accredited by the American Alliance of Museums. Connect with the Museum on Facebook, Twitter and Instagram.


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