U.S. Customs Service Port of Roosville, Main Port Building, U.S. Highway 93, immediately south of U.S.-Canadian border, Eureka, Lincoln County, MT

Significance: Built in 1933, the Main Port Building Port of Roosville is an excellent example of federal border station architecture produced by the Treasury Department during the 1930s along the U.S.-Canada border. Designed by prolific Treasury Department architect Louis A. Simon, the Main Port Building demonstrates the effective use of Colonial Revival stylistic imagery as an appropriate architectural treatment reflective of the dignified, official purpose it served. The Main Port Building at Roosville represents one of several standardized border station designs developed by Simon and built during a period of intensive federal construction activity, funded by the Public Buildings Act of 1926, during the Great Depression. The Main Port Building serves as the border station's primary structure, and originally contained the inspection station offices, detention cells, restrooms, and storage rooms along with garages and an inspection shed in the end wings.
Unprocessed Field note material exists for this structure: N775
Survey number: HABS MT-110-A
Building/structure dates: 1933 Initial Construction
Building/structure dates: 1978-1979 Subsequent Work
Building/structure dates: 1981-1982 Subsequent Work
Building/structure dates: before 1959 Subsequent Work