First Interstate Center
First Interstate Center is a signature commercial office building located in the Transwestern Plaza, a complex consisting of four office towers with a total of 20 floors in the downtown core of Billings, Montana, United States. It is the tallest building in the northern Rockies, and the tallest in the state of Montana. It was built in 1985 and rises to 272 feet (83 meters). It is used primarily for office space.