Medicine wheels are scattered across the Northern Plains, in Montana, Wyoming, Saskatchewan and Alberta, but Iniskim Umaapi is the oldest-known one in the world. Archaeological studies estimate the ancient stone circle to be about 5,000 years old – dating roughly the same time as the first phase of construction of Stonehenge. Located on England's Salisbury Plain, Stonehenge is thousands of kilometres and an ocean apart from Iniskim Umaapi. The fact that both stone circles are ancient and have mysterious purposes and origins led to Iniskim Umaapi being dubbed "Canada's Stonehenge" by Gordon R Freeman, professor emeritus at the University of Alberta.
