Great Lakes-St. Lawrence Seaway navigation season extension
Subtitle: interim feasibility study.
Publisher: [Dept. of Defense], Dept. of the Army, Corps of Engineers, Detroit District
Published: 1977
Place of publication: Detroit, Mich
Language: eng
Subjects: Great Lakes -- Navigation.; Saint Lawrence Seaway -- Navigation.
Notes: Sept. 1977.

Statement of findings, 7 p., was issued also.
Table of contents: value: v. 3. Final environmental statement.