An ancient medicine wheel geoglyph
https://calgaryherald.com/uncategorized/penner-canadas-stonehenge-older-than-many-great-spirit-sites-of-the-world
From the article:
=============="The ancient medicine wheel — more accurately, it's a geoglyph, which is essentially a man-made design made on the ground with stones or earth — was constructed over the span of a few thousand years. Incredibly, its first stones were placed approximately 5,000 years ago. So, to put this into context, the wheel is 1,000 years older than Stonehenge, 3,500 years older than the Mayan Pyramid of Chichen Itza, 500 years older than the Great Pyramid of Giza. Now, perhaps, you have a clearer picture of what we're dealing with here. In Alberta. Just a couple of hours from Calgary."
