10/24/2025
High atop the Bighorn Mountains of Wyoming, more than 9,600 feet above sea level, lies one of North America’s most mysterious and enduring ancient monuments — the Bighorn Medicine Wheel. Measuring 80 feet across and built from rough limestone, the wheel is made up of a central cairn surrounded by an outer ring connected by 28 spokes of stone. More than 100 similar circular stone structures have been found across the Rocky Mountains, but none are as large, well-preserved, or spiritually significant as this one.
Archaeologists believe the Bighorn Medicine Wheel was constructed between 300 and 800 years ago, though its origins may be far older, tied to generations of Indigenous peoples whose knowledge of the sky and seasons guided its design. The wheel is not random — its cairns and spokes align precisely with the summer solstice sunrise and sunset, as well as the rising points of certain bright stars, including Aldebaran, Rigel, and Sirius.
For the Crow, Arapaho, Cheyenne, and Shoshone nations, the site remains sacred — a place for prayer, vision quests, and ceremonial gatherings. The circle, representing life, balance, and the interconnectedness of the universe, reflects beliefs that stretch back millennia.
Even today, visitors who make the long hike to the mountaintop often describe a quiet, humbling energy that feels timeless — as if the stones themselves are keeping watch over both earth and sky.