The Rocky Mountain juniper is a species of juniper native to western North America, from southwest Canada to the Great Plains of the United States.
It is a small evergreen conifer reaching 5–15 meters (16–49 feet), rarely to 20 meters tall, with a trunk up to 1 m (3 ft 3 in), rarely 2 m, in diameter.
Some Plateau Indian tribes boiled an infusion from the leaves and inner bark to treat coughs and fevers. The cones were also sometimes boiled into a drink used as a laxative and to treat colds. Among many Native American cultures, the smoke of the burning juniper is used to drive away evil spirits prior to conducting a ceremony, such as a healing ceremony.