In the spring of 1996 a grade 5 schoolteacher and amature Archeologist, Shayne Tolman and his 13 year old son Shane were walking on the mud flats of the St. Mary Irrigation Reservoir near Cardston Alberta, when they found a number of Clovis stone age tools and points. The next day they returned to the site with the rest of their family and collected over 80 prehistoric artifacts including Clovis spear points.

Over the next 3 years this site would prove to be among the richest Archeological Fields in North America. It also became an important Paleontological site as well. It is now recognized as one of the world's best locations to find of ancient animal tracks.

It is from this site alone, that we now have evidence early man in North America hunted the horse. Archeologist Brian Kooyman from the University of Calgary, and a retired Paleontologist, Len Hills, found a number of Clovis spear points about 500 meters away from the skeleton of an early horse they unearthed.