Category
page 1Blackfoot culture
Blackfoot
indigenous language of the northwestern Great Plains of North America
Writing-on-Stone Provincial Park
Alberta provincial park

ammolite
Ammolite is an organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America. It is commonly unearthed by natural erosion or through the process of various mining practices, within the perimeter of an ancient sea bed called the Western Interior Seaway. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral contained in nacre, with a microstructure inherited from the shell. It is one of few biogenic gemstones; others include amber and pearl.
Sweet Grass Hills
Topographic feature in Montana