Currently the areas near these historical sites are as altars where Native Americans keep their traditions and their surrounding landscapes are best preserved ancient Native North America. But medicine wheels remains a mystery, the details of the religious ceremonies or philosophy that motivated its construction are still undiscovered forever ... and also have accumulated assumptions and speculation about their possible functions.
Courtesy Royal Alberta Museum, Alberta CanadáSolamente exist 46 medicine wheels, so that the province south of Canada appears to be the core of these structures. Majorville The medicine wheel was partially excavated in 1971 and has a huge center pole 9 meters in diameter, surrounded by a stone circle 27 meters wide and about 28 spokes that attach to the "axis". The excavation yielded valuable data that archaeologists were able to determine the time of its construction, and it appears that it was originally built 4.500 years ago. Supposedly the groups of people who followed him were adding new layers of rock from that time until the arrival of Europeans in Alberta. The long period of use and the construction of the center of this wheel barrow suggest that rituals and ceremonies held in this place may have changed over time, and while hunting buffalo or fertility may have played a role, accurate meaning of this site is lost in time.
In the same province, the medicine wheel Ellis belongs to a group called "tipi", because its diameter is about the same size as the basis of these conical portable tents made by the Indians of the area. Ellis is a circle of diameter 5 meters stones forming a wall of the 10 rays emanating in different directions and are about 14-19 meters. The limited archaeological and ethnographic evidence available indicates that this structure represents a wide range of ages, cultural associations and functions. It is assumed that Ellis wheel was built by the native Indians Blackfoot warriors prominent monument at the time of his death.The term "medicine wheel" was first applied to the Bighorn Medicine Wheel in Wyoming (USA), where the Great Plains run into the Rocky Mountains. Its structure consists of a large central post more than 3 meters in diameter and a half high, surrounded by another stone circle about 24 meters in diameter, and 28 lines of cobblestones that bind. The number 28 is sacred to some of the Indian tribes for the 28 days of the lunar cycle, suggesting a possible use as a marker of astronomical events. Lie around the wheel cairns six, most large enough to hold the weight of a human.extracted from
http://es-us.noticias.yahoo.com/blogs/blog-de-noticias/ruedas-medicinales-inc%C3%B3gnitas-y-sagradas-194622362.html