The Western Mountain Ash (Sorbus scopulina) is a shrub that grows wild in the Rocky Mountains. The plant is a member of the Rose family (Rosaceae), and despite the common name, it is not related to Ash trees. In spring the shrub bears clusters of white flowers that mature in late summer to bright red-orange berries. The berries are eaten by birds and a number of mammals, including deer, elk and moose.
I photographed this example in Rocky Mountain National Park, Colorado.