Fassett's Juniper is a low growing juniper in the Missouri Breaks area of central Montana, including in the CMR Wildlife Refuge, which looks like a hybrid between the tree Juniperus scopulorum, which is common in this area, and the creeping Juniperus horizontalis, which is not so common in this area. This shrubby juniper has branch ends that curve upward rather than creep along at ground level, like what would be expected of Juniperus horizontalis. This site lies within the Wyoming big sagebrush steppe north of Fourchette Bay and west of Reynolds Road in southern Phillips County Montana.
Fassett's juniper growing along a ridgeline where the lower (but not prostrate creeping) form is lacking seed cones (berries) whereas the more upright form is producing seed cones. This site lies along the Harlowton highway north of Big Timber, Sweet Grass County, Montana.
These shrubs are intermediate in stature between the Rocky Mountain juniper, Juniperus scopulorum, and creeping juniper, Juniperus horizontalis.