Elk Basin is a valley on the border of Montana and Wyoming in the United States. It is an active oil field with hundreds of derricks operating in it. Geologically, it is a breached anticline formed by
View of Elk Basin facing north along the axis of the anticline. Note strata dipping to the right and left on the sides of the image.
Montana is a landlocked state in the Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to the
Assiniboine family, Montana, 1890–91
Montana Territory in 1865
Chief Joseph and Col. John Gibbon met again on the Big Hole Battlefield site in 1889.
Buffalo Soldiers, Ft. Keogh, Montana, 1890. The nickname was given to the "Black Cavalry" by the Native American tribes they fought.