Final environmental/section 4(f) statement, administrative action for I 15-1 (32), Armstead North & South, I 15-1 (31), Pipe Organ North & South, I 15-1 (36), Pipe Organ North
By: U.S....Federal Highway Administration and State of Montana, Dept. of Highways
Contributors: Montana. Department of Highways
Series: FHWA-Mont-EIS-73-03-F
Publisher: The Administration
Published: 1975
Place of publication: [Helena? Mont.]
Language: eng
Number of pages: 54
Subjects: Highway engineering; Roads; Environmental policy
Notes: Cover title.