The mountains from whence these rocks came can seen behind.
The rocks that were abandoned in a narrow strip along the foothills extend for 930 kilometres between Jasper and Montana's northern border. This slender band is known as the Foothills Erratics Train and contains thousands of rocks and boulders of varying sizes, with the largest being the Okotoks Big Rock. https://www.alberta.ca/okotoks-erratic-big-rock.aspx
