Vaccinium scoparium is a species of huckleberry known by the common names grouse whortleberry, grouseberry, and littleleaf huckleberry. It is native to western North America, primarily in the Rockies, Cascades, and Black Hills from British Columbia and Alberta south to far northern California to Colorado and New Mexico, and east to South Dakota. It grows in mountain habitat such as forests, meadows, and talus, occurring in subalpine and alpine climates at elevations of 700 to 3000 meters (2,333 - 10,000 feet. It is a common understory plant in many forested regions of the Rocky Mountains, being common to abundant in some areas.