Retired archaeologist Victoria Atkins holds in her hands a necklace made from dried juniper berries, thought to bring tranquillity to the wearer and protection from bad spirits.
"It's a ghost necklace," she says before introducing our group of three dozen people to a pit house from 600 A.D., the oldest and first ruin on our 700-Year Tour at southwest Colorado's Mesa Verde National Park. "The Puebloan ask us in our hearts for permission to go into these homes and to say thank you when we leave," she explains.
Our fellow travelers, including some from the Netherlands, Denmark, Texas, Florida and Iowa, gently pass around the featherlight beads.
"My ancestors weren't even Vikings yet," quips a young man from Denmark as we try to grasp the era of ancient Puebloans.
Ancestors to Hopi, Ute, Zuni, Navajo and other affiliated Southwestern tribes, they began settling atop mesas that rise above the Mancos Valley about 550 A.D. From the late 1190s to the late 1270s, they began to create villages in the cliffside alcoves. No one can say for sure why they abandoned the area by 1300 — the best guess is long-term drought and crop failures — but they left behind more than 4,500 archaeological sites, including 600 dwellings built into steep cliffs high above canyons.
This legacy places Mesa Verde among America's most significant national parks and one of the world's first United Nations' World Heritage sites. Millions of artifacts have helped scientists piece together how people lived and survived in these early farming communities, relying on corn, beans and squash, along with hunting.
"Corn has been in this area for 4,000 years," Atkins says. "The Hopi people say, 'Corn is life.' "
My husband, Bob, and I arrived the night before after a drive south along the rugged 133-mile Unaweep Tabeguache Scenic Byway that traverses canyons from northwest to southwest Colorado. From the park's visitor center near its entrance, we made the climb up to Chapin and Wetherhill mesas, which rise more than 7,000 feet.