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History of geologic investigations, engineering design, and construction methods of the Harold D. Roberts Tunnel, Colorado

January 1, 1974

No abstract available.

Publication Year 1974
Title History of geologic investigations, engineering design, and construction methods of the Harold D. Roberts Tunnel, Colorado
DOI 10.3133/pp831A
Authors Ernest Eugene Wahlstrom
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Professional Paper
Series Number 831
Index ID pp831A
Record Source USGS Publications Warehouse