State of Montana priority primary route study
By: prepared by Montana Department of Highways, in cooperation with the U.S. Department of Transportation, Federal Highway Administration in accordance with Section 147, Title 23, U.S. Code Highways
Contributors: United States. Federal Highway Administration
Publisher: Montana Department of Highways
Published: 1973
Place of publication: [Helena]
Language: eng
Subjects: Roads; Design and construction
Notes: Data as of December 31, 1973.

Cover title.