Keywords: Operational Navigation Chart B-7, 5th edition.jpg en 1 1 000 000 scale Operational Navigation Chart Sheet B-7 5th edition Covers Canada Lambert Conformal Conic Projection Standard Parallels 72 20N and 78 40N Central longitude 108 45W 1986-01 txu-pclmaps-oclc-8322829_b_7 jpg onc/ Defense Mapping Agency Aerospace Center St Louis Mo Covers 72N to 80N 128W to 90W PD-USGov Uploaded with UploadWizard Operational Navigation Chart Maps of the Arctic Ocean Maps with Lambert conformal conic projection JPG maps Operational Navigation Charts in the Perry-CastaƱeda Library ONCs uploaded by Revent Maps of the Beaufort Sea Maps of islands of Canada Maps of Ellesmere Island |