Recherche dans la collection - [Maps from Transport Canada aids to navigation files]. [cartographic material]

Accession consists of 4 maps taken from the following Transport Canada files: file# 8000-1 pt.3, Aids to navigation, general; file# 8010-8, Aids to navigation, general - fixed structures, establishment and operations - Beauharnois to Cornwall; file# 8010-2650, Aids to navigation, general - Beauharnois upper entrance range, St. Lawrence Seaway; and file# 8010-2669, Aids to navigation, general - Nanticoke Creek.
Contents: 1. Location plans and borehole logs, port of Windsor, tanker berth extension, Windsor Harbour Commission, Windsor, Ontario. 1978 -- 2. Beauharnois Canal, location of navigation channel. 1975 -- 3. New channel map, Valleyfield Channel, Saint-François Bay project. 1981 -- 4. Stelco, approach channel. 1979.
Item #1 includes borehole reference chart.
Item #2 includes charts of: coordinates of horizontal control points, navigation channel reference points, and of steering ranges.
Item #4 includes notes and a legend.

Cartographic material: Items #2,4 have tears along folds and edges.

The accession was transferred on 31 Jan. 1997 from Government Archives Division RG12, vols. 5398, 5400, 5403 and 5405 (accession 1992-93/116).

Scales differ.

Originally received 20 items, but 16 were disposed as duplicates.