The Majorville Medicine Wheel archaeological site is located on the prairies of southern Alberta, Canada.

The "medicine wheel" consists of a large central stone cairn with 28 spokes radiating outward to an outer ring, all marked with smaller stones. A portion of the central cairn was excavated in 1971, and artifacts found at the base of the structure dated the start of its construction to some 5,000 years before present, which may pre-date Stonehenge.

One recent theory suggests that the medicine wheel is the centre-piece of a large astronomical observatory complex that covers nearly 100 square kilometers; smaller cairns situated on nearby hilltops appear to be aligned with sunrise and sunset during the summer and winter solstices.
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