Browse Items (12 total) Browse All Browse by Tag Search Items Browse Map Tags: engineering Sort by: Title Creator Date Added Davis Lock Postcard A. E. Young c.1930 Map of the St. Mary's River from Lake Superior to Lake Huron A. L. Magilton 1855 EAST FACADE OF POWERHOUSE BUILDING Historic American Engineering Record 1968 REAR VIEW OF A LINE-UP OF HORRY FURNACES AT SAULT STE. MARIE Historic American Engineering Record 1978 CONSTRUCTING THE LOADING BRIDGE ON THE NORTH SIDE OF THE POWER HOUSE, JULY 16, 1917 Historic American Engineering Record 1978 GENERAL VIEW NORTH OF HEADGATES TO POWER CANAL, FROM RAILROAD BRIDGE Jet Lowe, Photographer. 1978 Mackinac Bridge Construction Lawrence A. Rubin 1958 Letter from Roger L. Rosentreter to Mr. P. J. Remenecz Roger L. Rosentreter, Michigan Department of State 1982 Steamer Ann Arbor No.3 leaving Frankfort Steamer Ann Arbor No.3 1901 Improving St. Marys River, Mich. U.S. Army Corp of Engineers 13 February 1909 Diagram showing graphically Total Vessels and Total Freight passing through St. Marys River U.S. Engineer Office, Detroit Michigan 1911 Image of the Locks W. J. Bell c.1890 Output Formats atom, dcmes-xml, json, omeka-xml, rss2